diff --git a/translations/SchebTwoFactorBundle+intl-icu.de.xlf b/translations/SchebTwoFactorBundle+intl-icu.de.xlf
index 900a25be..ebaf8ec0 100644
--- a/translations/SchebTwoFactorBundle+intl-icu.de.xlf
+++ b/translations/SchebTwoFactorBundle+intl-icu.de.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="de">
   <file id="SchebTwoFactorBundle.de">
     <unit id="QoghNQ6" name="login">
diff --git a/translations/SchebTwoFactorBundle+intl-icu.en.xlf b/translations/SchebTwoFactorBundle+intl-icu.en.xlf
index 4c83c393..0d1b2cc7 100644
--- a/translations/SchebTwoFactorBundle+intl-icu.en.xlf
+++ b/translations/SchebTwoFactorBundle+intl-icu.en.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="en">
   <file id="SchebTwoFactorBundle.en">
     <unit id="QoghNQ6" name="login">
diff --git a/translations/SchebTwoFactorBundle.de.xlf b/translations/SchebTwoFactorBundle.de.xlf
index 900a25be..ebaf8ec0 100644
--- a/translations/SchebTwoFactorBundle.de.xlf
+++ b/translations/SchebTwoFactorBundle.de.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="de">
   <file id="SchebTwoFactorBundle.de">
     <unit id="QoghNQ6" name="login">
diff --git a/translations/SchebTwoFactorBundle.en.xlf b/translations/SchebTwoFactorBundle.en.xlf
index 4c83c393..0d1b2cc7 100644
--- a/translations/SchebTwoFactorBundle.en.xlf
+++ b/translations/SchebTwoFactorBundle.en.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="en">
   <file id="SchebTwoFactorBundle.en">
     <unit id="QoghNQ6" name="login">
diff --git a/translations/frontend.cs.xlf b/translations/frontend.cs.xlf
index 206990d9..08bd2b5e 100644
--- a/translations/frontend.cs.xlf
+++ b/translations/frontend.cs.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="cs">
   <file id="frontend.cs">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/frontend.da.xlf b/translations/frontend.da.xlf
index a3834bb5..9c6b3129 100644
--- a/translations/frontend.da.xlf
+++ b/translations/frontend.da.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="da">
   <file id="frontend.en">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/frontend.de.xlf b/translations/frontend.de.xlf
index 336c13db..4eaded60 100644
--- a/translations/frontend.de.xlf
+++ b/translations/frontend.de.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="de">
   <file id="frontend.en">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/frontend.el.xlf b/translations/frontend.el.xlf
index d1aeeed3..bab41358 100644
--- a/translations/frontend.el.xlf
+++ b/translations/frontend.el.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="el">
   <file id="frontend.el">
     <unit id="lQ8QeGr" name="search.placeholder">
diff --git a/translations/frontend.en.xlf b/translations/frontend.en.xlf
index 22213855..aa3cf2d9 100644
--- a/translations/frontend.en.xlf
+++ b/translations/frontend.en.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="en">
   <file id="frontend.en">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/frontend.es.xlf b/translations/frontend.es.xlf
index 18f85306..361d9104 100644
--- a/translations/frontend.es.xlf
+++ b/translations/frontend.es.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="es">
   <file id="frontend.es">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/frontend.fr.xlf b/translations/frontend.fr.xlf
index a03eb68f..353c9002 100644
--- a/translations/frontend.fr.xlf
+++ b/translations/frontend.fr.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="fr">
   <file id="frontend.fr">
     <unit id="lQ8QeGr" name="search.placeholder">
diff --git a/translations/frontend.hu.xlf b/translations/frontend.hu.xlf
index 4f7d1fcc..bdcda170 100644
--- a/translations/frontend.hu.xlf
+++ b/translations/frontend.hu.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="hu">
   <file id="frontend.en">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/frontend.it.xlf b/translations/frontend.it.xlf
index 015c23ea..56d0e0f0 100644
--- a/translations/frontend.it.xlf
+++ b/translations/frontend.it.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="it">
   <file id="frontend.it">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/frontend.ja.xlf b/translations/frontend.ja.xlf
index c296329f..90ffdf5f 100644
--- a/translations/frontend.ja.xlf
+++ b/translations/frontend.ja.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="ja">
   <file id="frontend.ja">
     <unit id="lQ8QeGr" name="search.placeholder">
diff --git a/translations/frontend.nl.xlf b/translations/frontend.nl.xlf
index e73770b2..13187f62 100644
--- a/translations/frontend.nl.xlf
+++ b/translations/frontend.nl.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="nl">
   <file id="frontend.nl">
     <unit id="lQ8QeGr" name="search.placeholder">
diff --git a/translations/frontend.pl.xlf b/translations/frontend.pl.xlf
index 30678382..dfdd8887 100644
--- a/translations/frontend.pl.xlf
+++ b/translations/frontend.pl.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="pl">
   <file id="frontend.pl">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/frontend.ru.xlf b/translations/frontend.ru.xlf
index 5022615b..a09cb348 100644
--- a/translations/frontend.ru.xlf
+++ b/translations/frontend.ru.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="ru">
   <file id="frontend.ru">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/frontend.uk.xlf b/translations/frontend.uk.xlf
index 59b6c77c..86f51f95 100644
--- a/translations/frontend.uk.xlf
+++ b/translations/frontend.uk.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="uk">
   <file id="frontend.en">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/frontend.zh.xlf b/translations/frontend.zh.xlf
index 78c70cf1..d2ea6fd0 100644
--- a/translations/frontend.zh.xlf
+++ b/translations/frontend.zh.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="zh-CN">
   <file id="frontend.en">
     <unit id="eLrezdb" name="search.placeholder">
diff --git a/translations/messages.da.xlf b/translations/messages.da.xlf
index f414c3eb..9878a09e 100644
--- a/translations/messages.da.xlf
+++ b/translations/messages.da.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="da">
   <file id="messages.en">
     <unit id="x_wTSQS" name="attachment_type.caption">
diff --git a/translations/messages.de.xlf b/translations/messages.de.xlf
index d6552dce..c4f2d5d8 100644
--- a/translations/messages.de.xlf
+++ b/translations/messages.de.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="de">
   <file id="messages.en">
     <unit id="x_wTSQS" name="attachment_type.caption">
diff --git a/translations/messages.en.xlf b/translations/messages.en.xlf
index 53c8d70e..5596ea09 100644
--- a/translations/messages.en.xlf
+++ b/translations/messages.en.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="en">
   <file id="messages.en">
     <unit id="x_wTSQS" name="attachment_type.caption">
diff --git a/translations/security.cs.xlf b/translations/security.cs.xlf
index fa8be8bd..59de9f9f 100644
--- a/translations/security.cs.xlf
+++ b/translations/security.cs.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="cs">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.da.xlf b/translations/security.da.xlf
index 5ccbead8..99329533 100644
--- a/translations/security.da.xlf
+++ b/translations/security.da.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="da">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.de.xlf b/translations/security.de.xlf
index dd07410e..2a357094 100644
--- a/translations/security.de.xlf
+++ b/translations/security.de.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="de">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.el.xlf b/translations/security.el.xlf
index a206f21f..fb14dc50 100644
--- a/translations/security.el.xlf
+++ b/translations/security.el.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="el">
   <file id="security.en">
     <unit id="aazoCks" name="user.login_error.user_disabled">
diff --git a/translations/security.en.xlf b/translations/security.en.xlf
index 9a59dbe8..5a79d6ec 100644
--- a/translations/security.en.xlf
+++ b/translations/security.en.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="en">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.es.xlf b/translations/security.es.xlf
index ab65f924..163e6a1a 100644
--- a/translations/security.es.xlf
+++ b/translations/security.es.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="es">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.fr.xlf b/translations/security.fr.xlf
index 1342daee..9e40b8bf 100644
--- a/translations/security.fr.xlf
+++ b/translations/security.fr.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="fr">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.hr.xlf b/translations/security.hr.xlf
index 61e06165..be52f241 100644
--- a/translations/security.hr.xlf
+++ b/translations/security.hr.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="hr">
   <file id="security.en">
     <unit id="aazoCks" name="user.login_error.user_disabled">
diff --git a/translations/security.hu.xlf b/translations/security.hu.xlf
index 2110a3fb..3c885815 100644
--- a/translations/security.hu.xlf
+++ b/translations/security.hu.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="hu">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.it.xlf b/translations/security.it.xlf
index 2d1b1d38..b75de148 100644
--- a/translations/security.it.xlf
+++ b/translations/security.it.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="it">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.ja.xlf b/translations/security.ja.xlf
index ed7942f8..8e31057f 100644
--- a/translations/security.ja.xlf
+++ b/translations/security.ja.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="ja">
   <file id="security.en">
     <unit id="aazoCks" name="user.login_error.user_disabled">
diff --git a/translations/security.nl.xlf b/translations/security.nl.xlf
index 7e4f3a13..0e4ecc41 100644
--- a/translations/security.nl.xlf
+++ b/translations/security.nl.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="nl">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.pl.xlf b/translations/security.pl.xlf
index 48368883..14e8652b 100644
--- a/translations/security.pl.xlf
+++ b/translations/security.pl.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="pl">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.ru.xlf b/translations/security.ru.xlf
index 48e8716c..b506b2fc 100644
--- a/translations/security.ru.xlf
+++ b/translations/security.ru.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="ru">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.uk.xlf b/translations/security.uk.xlf
index 8f58a487..03be9410 100644
--- a/translations/security.uk.xlf
+++ b/translations/security.uk.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="uk">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/security.vi.xlf b/translations/security.vi.xlf
index f80b7eca..c5c46e84 100644
--- a/translations/security.vi.xlf
+++ b/translations/security.vi.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="vi">
   <file id="security.en">
     <unit id="aazoCks" name="user.login_error.user_disabled">
diff --git a/translations/security.zh.xlf b/translations/security.zh.xlf
index fbe96d88..181c9c0f 100644
--- a/translations/security.zh.xlf
+++ b/translations/security.zh.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="zh-CN">
   <file id="security.en">
     <unit id="GrLNa9P" name="user.login_error.user_disabled">
diff --git a/translations/validators.cs.xlf b/translations/validators.cs.xlf
index 07cf9fa6..5a1c723f 100644
--- a/translations/validators.cs.xlf
+++ b/translations/validators.cs.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="cs">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.da.xlf b/translations/validators.da.xlf
index e6312933..e7379173 100644
--- a/translations/validators.da.xlf
+++ b/translations/validators.da.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="da">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.de.xlf b/translations/validators.de.xlf
index 1b3a5267..17dc1641 100644
--- a/translations/validators.de.xlf
+++ b/translations/validators.de.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="de">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.el.xlf b/translations/validators.el.xlf
index 7af0be78..c4f1d8b1 100644
--- a/translations/validators.el.xlf
+++ b/translations/validators.el.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="el">
   <file id="validators.en">
     <unit id="DuzIOCr" name="part.ipn.must_be_unique">
diff --git a/translations/validators.en.xlf b/translations/validators.en.xlf
index c17afcaa..e2e70d03 100644
--- a/translations/validators.en.xlf
+++ b/translations/validators.en.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="en">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.fr.xlf b/translations/validators.fr.xlf
index 1e01d640..ac1ea192 100644
--- a/translations/validators.fr.xlf
+++ b/translations/validators.fr.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="fr">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.hr.xlf b/translations/validators.hr.xlf
index 80fc1999..1effea8d 100644
--- a/translations/validators.hr.xlf
+++ b/translations/validators.hr.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="hr">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.hu.xlf b/translations/validators.hu.xlf
index 000db62c..b70a3761 100644
--- a/translations/validators.hu.xlf
+++ b/translations/validators.hu.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="hu">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.it.xlf b/translations/validators.it.xlf
index 84e50226..ee13b814 100644
--- a/translations/validators.it.xlf
+++ b/translations/validators.it.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="it">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.ja.xlf b/translations/validators.ja.xlf
index 2fa48f17..c72b8441 100644
--- a/translations/validators.ja.xlf
+++ b/translations/validators.ja.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="ja">
   <file id="validators.en">
     <unit id="xevSdCK" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.nl.xlf b/translations/validators.nl.xlf
index 57576989..c2815002 100644
--- a/translations/validators.nl.xlf
+++ b/translations/validators.nl.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="nl">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.pl.xlf b/translations/validators.pl.xlf
index a28eb80a..03942667 100644
--- a/translations/validators.pl.xlf
+++ b/translations/validators.pl.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="pl">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.ru.xlf b/translations/validators.ru.xlf
index 20ee097f..5ed1278d 100644
--- a/translations/validators.ru.xlf
+++ b/translations/validators.ru.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="ru">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.uk.xlf b/translations/validators.uk.xlf
index 6cad3090..a4eee60d 100644
--- a/translations/validators.uk.xlf
+++ b/translations/validators.uk.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="uk">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">
diff --git a/translations/validators.zh.xlf b/translations/validators.zh.xlf
index 892ce60c..8e3e50a9 100644
--- a/translations/validators.zh.xlf
+++ b/translations/validators.zh.xlf
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="utf-8"?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="en" trgLang="zh-CN">
   <file id="validators.en">
     <unit id="cRbk.cm" name="part.master_attachment.must_be_picture">