Minor hot fix

Author: nicolas-grekas

src/Symfony/Component/HttpKernel/Client.php

@@ -107,7 +107,7 @@ protected function getScript($request)
         $code = <<<EOF
 <?php
 
-error_reporting($errorReporting | ~E_USER_DEPRECATED);
+error_reporting($errorReporting & ~E_USER_DEPRECATED);
 
 require_once '$requirePath';