diff --git a/core/modules/comment/comment.admin.inc b/core/modules/comment/comment.admin.inc
index 1ae4490..0682d47 100644
--- a/core/modules/comment/comment.admin.inc
+++ b/core/modules/comment/comment.admin.inc
@@ -9,10 +9,17 @@
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 /**
- * Page callback for displaying the comment bundle admin overview page.
+ * Page callback: Displays the comment bundle admin overview page.
  */
 function comment_overview_bundles() {
-  $header = array(t('Field name'), t('Used in'), array('data' => t('Operations'), 'colspan' => (module_exists('field_ui') ? '4' : '2')));
+  $header = array(
+    t('Field name'),
+    t('Used in'),
+    array(
+      'data' => t('Operations'),
+      'colspan' => (module_exists('field_ui') ? '4' : '2')
+    )
+  );
   $rows = array();
 
   foreach (comment_get_comment_fields() as $field_name => $field_info) {
@@ -139,7 +146,9 @@ function comment_admin_overview($form, &$form_state, $arg) {
     ->orderByHeader($header)
     ->execute();
 
-  $cids = $entity_ids = $entities = array();
+  $cids = array();
+  $entity_ids = array();
+  $entities = array();
 
   // We collect entities grouped by entity_type so we can load them and use
   // their labels.
diff --git a/core/modules/comment/comment.api.php b/core/modules/comment/comment.api.php
index bd79c6e..7792f23 100644
--- a/core/modules/comment/comment.api.php
+++ b/core/modules/comment/comment.api.php
@@ -174,8 +174,10 @@ function hook_comment_delete(Drupal\comment\Comment $comment) {
 }
 
 /**
- * Controls access to commenting on an entity where no {%entity_type}_access
- * function exists for the given entity.
+ * Controls access to entity comment forms.
+ *
+ * Used to control access to commenting on an entity where no
+ * {%entity_type}_access function exists for the given entity.
  *
  * Modules may implement this hook if they want to have a say in whether or not
  * the logged in user has access to view an entity in order to reply to a
diff --git a/core/modules/comment/comment.field.inc b/core/modules/comment/comment.field.inc
index 9160484..2b5febf 100644
--- a/core/modules/comment/comment.field.inc
+++ b/core/modules/comment/comment.field.inc
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * @file
  * Enables comments with moderation on entities