diff --git a/core/lib/Drupal/Core/Controller/HtmlFormController.php b/core/lib/Drupal/Core/Controller/HtmlFormController.php
index 8a776cb..2c2fa2c 100644
--- a/core/lib/Drupal/Core/Controller/HtmlFormController.php
+++ b/core/lib/Drupal/Core/Controller/HtmlFormController.php
@@ -63,8 +63,7 @@ public function content(Request $request, $_form) {
     $form_state['build_info']['args'] = $args;
 
     $form_id = _drupal_form_id($form_object, $form_state);
-    $form = drupal_build_form($form_id, $form_state);
-    return $form;
+    return drupal_build_form($form_id, $form_state);
   }
 
   /**
diff --git a/core/lib/Drupal/Core/HttpKernel.php b/core/lib/Drupal/Core/HttpKernel.php
index d80ddfb..18b2f14 100644
--- a/core/lib/Drupal/Core/HttpKernel.php
+++ b/core/lib/Drupal/Core/HttpKernel.php
@@ -64,11 +64,15 @@ public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQ
     /**
      * Forwards the request to another controller.
      *
-     * @param string $controller The controller name (a string like BlogBundle:Post:index)
-     * @param array  $attributes An array of request attributes
-     * @param array  $query      An array of request query parameters
+     * @param string|NULL $controller
+     *   The controller name (a string like BlogBundle:Post:index).
+     * @param array $attributes
+     *   An array of request attributes.
+     * @param array $query
+     *   An array of request query parameters.
      *
-     * @return Response A Response instance
+     * @return Response
+     *   A Response instance
      */
     public function forward($controller, array $attributes = array(), array $query = array())
     {