fix missing end() for the form groups

Author: ychadwick

Admin/Model/MenuItemAdmin.php

@@ -141,7 +141,8 @@ protected function configureFormFields(FormMapper $formMapper)
 
         $formMapper
             ->add('locale', 'hidden', array('data' => $locale))
-            ->add('name');
+            ->add('name')
+            ->end();
 
 
         if ($this->isRoot) {