[FrameworkBundle] [HttpKernel] fixed correct EOL and EOM month

* Added a hardcoded day 01 in order to output the proper month November
which is the correct EOL and EOM month.
* \DateTime::createFromFormat('mY') will output December for every month
where day 31 exists.

Author: erics86

Command/AboutCommand.php

@@ -123,7 +123,7 @@ private static function formatFileSize($path)
 
     private static function isExpired($date)
     {
-        $date = \DateTime::createFromFormat('m/Y', $date);
+        $date = \DateTime::createFromFormat('d/m/Y', '01/'.$date);
 
         return false !== $date && new \DateTime() > $date->modify('last day of this month 23:59:59');
     }