diff --git a/core/lib/Drupal/Core/Menu/MenuTreeStorage.php b/core/lib/Drupal/Core/Menu/MenuTreeStorage.php
index 3be4556..fc81bd0 100644
--- a/core/lib/Drupal/Core/Menu/MenuTreeStorage.php
+++ b/core/lib/Drupal/Core/Menu/MenuTreeStorage.php
@@ -177,7 +177,6 @@ public function rebuild(array $definitions) {
     // Handle any children we didn't find starting from top-level links.
     foreach ($children as $orphan_links) {
       foreach ($orphan_links as $id) {
-        // Force it to the top level.
         $this->saveRecursive($id, $children, $links);
       }
     }
diff --git a/core/modules/system/src/Tests/Menu/MenuParentChildRelationshipTest.php b/core/modules/system/src/Tests/Menu/MenuParentChildRelationshipTest.php
index 6220cd4..1ca5dfa 100644
--- a/core/modules/system/src/Tests/Menu/MenuParentChildRelationshipTest.php
+++ b/core/modules/system/src/Tests/Menu/MenuParentChildRelationshipTest.php
@@ -22,7 +22,7 @@ class MenuParentChildRelationshipTest extends WebTestBase {
    *
    * @var array
    */
-  public static $modules = array('node', 'menu_link_content');
+  public static $modules = ['node', 'menu_link_content'];
 
   /**
    * The menu link plugin manager.
@@ -39,39 +39,40 @@ protected function setUp() {
 
     $this->menuLinkManager = \Drupal::service('plugin.manager.menu.link');
 
-    entity_create('menu', array(
+    entity_create('menu', [
       'id' => 'menu_test',
       'label' => 'Test menu',
       'description' => 'Description text',
-    ))->save();
+    ])->save();
   }
 
   /**
-   * Tests creating links with the path created using views and test relationship on rebuild.
+   * Tests creating links with the path created using views and test
+   * relationship on rebuild.
    */
   public function testParentChildRelationshipOnMenuRebuild() {
     $this->menuLinkManager->deleteLinksInMenu('menu_test');
-    $base_options = array(
+    $base_options = [
       'title' => 'Menu link test',
       'provider' => 'menu_test',
       'menu_name' => 'menu_test',
-    );
+    ];
 
-    $node = entity_create('node', array('type' => 'page', 'title' => 'Test Title'));
+    $node = entity_create('node', ['type' => 'page', 'title' => 'Test Title']);
     $node->save();
 
-    $parent = $base_options + array(
+    $parent = $base_options + [
         'link' => [['uri' => 'entity:node/' . $node->id()]],
-      );
+      ];
 
     $link = entity_create('menu_link_content', $parent);
     $link->save();
     $links['parent'] = $link->getPluginId();
 
-    $child = $base_options + array(
+    $child = $base_options + [
         'link' => [['uri' => 'internal:/admin/content/files']],
         'parent' => $links['parent'],
-      );
+      ];
     $link = entity_create('menu_link_content', $child);
     $link->save();
     $links['child'] = $link->getPluginId();
@@ -79,7 +80,7 @@ public function testParentChildRelationshipOnMenuRebuild() {
     \Drupal::service('plugin.manager.menu.link')->rebuild();
 
     $child_menu = $this->menuLinkManager->createInstance($links['child']);
-    $this->assertEqual($child_menu->getParent(), $links['parent'], SafeMarkup::format('Menu link %id has parent %parent, expected %expected_parent.', array('%id' => $links['child'], '%parent' => $child_menu->getParent(), '%expected_parent' => $links['parent'])));
+    $this->assertEqual($child_menu->getParent(), $links['parent'], SafeMarkup::format('Menu link %id has parent %parent, expected %expected_parent.', ['%id' => $links['child'], '%parent' => $child_menu->getParent(), '%expected_parent' => $links['parent']]));
   }
 
 }