.../Plugin/Field/FieldFormatter/CommentDefaultFormatter.php        |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/modules/comment/lib/Drupal/comment/Plugin/Field/FieldFormatter/CommentDefaultFormatter.php b/core/modules/comment/lib/Drupal/comment/Plugin/Field/FieldFormatter/CommentDefaultFormatter.php
index 0e1ad3d..5c1d9ea 100644
--- a/core/modules/comment/lib/Drupal/comment/Plugin/Field/FieldFormatter/CommentDefaultFormatter.php
+++ b/core/modules/comment/lib/Drupal/comment/Plugin/Field/FieldFormatter/CommentDefaultFormatter.php
@@ -151,7 +151,7 @@ public function viewElements(FieldItemListInterface $items) {
           else {
             $output['comment_form'] = array(
               '#type' => 'render_cache_placeholder',
-              '#callback' => 'Drupal\comment\Plugin\Field\FieldFormatter\CommentDefaultFormatter::renderForm',
+              '#callback' => '\Drupal\comment\Plugin\Field\FieldFormatter\CommentDefaultFormatter::renderForm',
               '#context' => array(
                 'entity_type' => $entity->entityType(),
                 'entity_id' => $entity->id(),
@@ -184,7 +184,7 @@ public function viewElements(FieldItemListInterface $items) {
    *   - field_name: a comment field name
    *
    * @return array
-   *   The updated $element.
+   *   A renderable array containing the comment form.
    */
   public static function renderForm(array $context) {
     $entity = entity_load($context['entity_type'], $context['entity_id']);