netwatch-dns: check with a HTTP/2 request

We need RouterOS 7.24 for this to catch runtime errors for bad
command parameters.

Actually this would work with RouterOS 7.23 on architectures that
support http-version=http2 ...

check-health.d/temperature.rsc

@@ -14,6 +14,7 @@
   :local FuncName   [ :tostr $0 ];
   :local ScriptName [ :tostr $1 ];
 
+  :global CheckHealthCPUUtilization;
   :global CheckHealthLast;
   :global CheckHealthTemperature;
   :global CheckHealthTemperatureDeviation;
@@ -57,7 +58,8 @@
         $SendNotification2 ({ origin=$ScriptName; \
           subject=([ $SymbolForNotification "fire" ] . "Health warning: " . $Name); \
           message=("The " . $Name . " on " . $Identity . " is above threshold: " . \
-            $Value . "\C2\B0" . "C") });
+            $Value . "\C2\B0C\n\n" . "The average CPU utilization is at " . \
+            ($CheckHealthCPUUtilization / 10) . "%!") });
         :set ($CheckHealthTemperatureNotified->$Name) true;
       }
       :if ($Value <= ($CheckHealthTemperature->$Name - $CheckHealthTemperatureDeviation) && \
@@ -65,7 +67,8 @@
         $SendNotification2 ({ origin=$ScriptName; \
           subject=([ $SymbolForNotification "white-heavy-check-mark" ] . "Health recovery: " . $Name); \
           message=("The " . $Name . " on " . $Identity . " dropped below threshold: " .  \
-            $Value . "\C2\B0" . "C") });
+            $Value . "\C2\B0C\n\n" . "The average CPU utilization is at " . \
+            ($CheckHealthCPUUtilization / 10) . "%!") });
         :set ($CheckHealthTemperatureNotified->$Name) false;
       }
     }