15874 [HttpKernel] fix xml config

Author: JohJohan

reference/configuration/framework.rst

@@ -3349,7 +3349,9 @@ Defines what ``log_level`` should be used and what ``status_code`` should be ret
 
             <framework:config>
                 <framework:exceptions>
-                    <framework:Symfony\Component\HttpKernel\Exception\BadRequestHttpException log_level="debug" status_code="422">
+                    <framework:Symfony\Component\HttpKernel\Exception\BadRequestHttpException>
+                        <framework:log_level>debug</framework:recipient>
+                        <framework:status_code>422</framework:recipient>
                     </framework:Symfony\Component\HttpKernel\Exception\BadRequestHttpException>
                 </framework:exceptions>
                 <!-- ... -->