diff --git a/core/modules/overlay/overlay.module b/core/modules/overlay/overlay.module
index 01c8d78..7c8689e 100644
--- a/core/modules/overlay/overlay.module
+++ b/core/modules/overlay/overlay.module
@@ -511,9 +511,11 @@ function template_preprocess_overlay(&$variables) {
 }
 
 /**
- * Preprocess variables for the message about how to disable the overlay.
+ * Prepares variables for overlay disable message templates.
  *
- * @param $variables
+ * Default template: overlay-disable-message.html.twig.
+ *
+ * @param array $variables
  *   An associative array with an 'element' element, which itself is an
  *   associative array containing:
  *   - profile_link: The link to this user's account.
@@ -535,7 +537,6 @@ function template_preprocess_overlay_disable_message(&$variables) {
     }
   }
 
-  // Render the links.
   $variables['profile_link'] = $element['profile_link'];
   $variables['dismiss_link'] = $element['dismiss_message_link'];
 }
diff --git a/core/modules/overlay/templates/overlay-disable-message.html.twig b/core/modules/overlay/templates/overlay-disable-message.html.twig
index 4b9c38a..4c03062 100644
--- a/core/modules/overlay/templates/overlay-disable-message.html.twig
+++ b/core/modules/overlay/templates/overlay-disable-message.html.twig
@@ -1,10 +1,9 @@
 {#
 /**
  * @file
- * Default theme implementation for the message about how to disable the overlay.
+ * Default theme implementation for the message about disabling the overlay.
  *
  * Available variables:
- * - attributes: An array of element attributes.
  * - profile_link: Rendered link.
  * - dismiss_link: Rendered link to disable the message.
  *
diff --git a/core/modules/overlay/templates/overlay.html.twig b/core/modules/overlay/templates/overlay.html.twig
index e86ecd6..08aa740 100644
--- a/core/modules/overlay/templates/overlay.html.twig
+++ b/core/modules/overlay/templates/overlay.html.twig
@@ -7,7 +7,7 @@
  * - title: the (sanitized) title of the page.
  * - page: The rendered page content.
  * - tabs: Tabs linking to any sub-pages beneath the current page (e.g., the view
- * and edit tabs when displaying a node).
+ *   and edit tabs when displaying a node).
  *
  * @see template_preprocess()
  * @see template_preprocess_overlay()