15874 [HttpKernel] fix xml config 4

Author: JohJohan

reference/configuration/framework.rst

@@ -3353,7 +3353,7 @@ Defines what ``log_level`` should be used and what ``status_code`` should be ret
                         <framework:log_level>debug</framework:log_level>
                         <framework:status_code>422</framework:status_code>
                     </exception>
-                </framework:>
+                </framework:exceptions>
                 <!-- ... -->
             </framework:config>
         </container>