core/includes/common.inc                          |  2 +-
 core/lib/Drupal/Core/Render/Renderer.php          |  1 -
 core/lib/Drupal/Core/Render/RendererInterface.php | 10 +++++-----
 3 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/core/includes/common.inc b/core/includes/common.inc
index 654723c..8aab5dc 100644
--- a/core/includes/common.inc
+++ b/core/includes/common.inc
@@ -854,7 +854,7 @@ function drupal_js_defaults($data = NULL) {
  * Merges two #attached arrays.
  *
  * The values under the 'drupalSettings' key are merged in a special way, to
- * match the behavior of
+ * match the behavior of:
  *
  * @code
  *   jQuery.extend(true, {}, $settings_items[0], $settings_items[1], ...)
diff --git a/core/lib/Drupal/Core/Render/Renderer.php b/core/lib/Drupal/Core/Render/Renderer.php
index a3dd23d..69e99a0 100644
--- a/core/lib/Drupal/Core/Render/Renderer.php
+++ b/core/lib/Drupal/Core/Render/Renderer.php
@@ -586,7 +586,6 @@ public static function mergeBubbleableMetadata(array $a, array $b) {
   /**
    * {@inheritdoc}
    */
-
   public static function mergeAttachments(array $a, array $b) {
     // If both #attached arrays contain drupalSettings, then merge them
     // correctly; adding the same settings multiple times needs to behave
diff --git a/core/lib/Drupal/Core/Render/RendererInterface.php b/core/lib/Drupal/Core/Render/RendererInterface.php
index 990a087..418298b 100644
--- a/core/lib/Drupal/Core/Render/RendererInterface.php
+++ b/core/lib/Drupal/Core/Render/RendererInterface.php
@@ -305,10 +305,10 @@ public function getCacheableRenderArray(array $elements);
   public static function mergeBubbleableMetadata(array $a, array $b);
 
   /**
-   * Merges two attachments (#attached) arrays.
+   * Merges two attachments arrays (which live under the '#attached' key).
    *
    * The values under the 'drupalSettings' key are merged in a special way, to
-   * match the behavior of
+   * match the behavior of:
    *
    * @code
    *   jQuery.extend(true, {}, $settings_items[0], $settings_items[1], ...)
@@ -339,12 +339,12 @@ public static function mergeBubbleableMetadata(array $a, array $b);
    *   the same as if rendered in one PHP request and merged by PHP.
    *
    * @param array $a
-   *   An attachments (#attached) array.
+   *   An attachments array.
    * @param array $b
-   *   Another attachments (#attached) array.
+   *   Another attachments array.
    *
    * @return array
-   *   The merged attachments (#attached) array.
+   *   The merged attachments array.
    */
   public static function mergeAttachments(array $a, array $b);