diff --git a/core/modules/system/src/Block/SystemPageActionsBlock.php b/core/modules/system/src/Block/SystemPageActionsBlock.php
index d8aeb6d..3d5a9e0 100644
--- a/core/modules/system/src/Block/SystemPageActionsBlock.php
+++ b/core/modules/system/src/Block/SystemPageActionsBlock.php
@@ -88,16 +88,14 @@ public static function create(ContainerInterface $container, array $configuratio
    * {@inheritdoc}
    */
   public function defaultConfiguration() {
-    return array(
-      'label_display' => FALSE,
-    );
+    return ['label_display' => FALSE];
   }
 
   /**
    * {@inheritdoc}
    */
   public function build() {
-    $build = array();
+    $build = [];
     $links = menu_local_tasks();
     $request = $this->requestStack->getCurrentRequest();
     $route_name = $request->attributes->get(RouteObjectInterface::ROUTE_NAME);
@@ -106,9 +104,7 @@ public function build() {
       return FALSE;
     }
 
-    $build['action_links'] = array(
-      '#markup' => $action_links,
-    );
+    $build['action_links'] = ['#markup' => $action_links];
 
     return $build;
   }
diff --git a/core/modules/system/src/Block/SystemPageTabsBlock.php b/core/modules/system/src/Block/SystemPageTabsBlock.php
index 11920da..ad240d4 100644
--- a/core/modules/system/src/Block/SystemPageTabsBlock.php
+++ b/core/modules/system/src/Block/SystemPageTabsBlock.php
@@ -63,9 +63,7 @@ public static function create(ContainerInterface $container, array $configuratio
    * {@inheritdoc}
    */
   public function defaultConfiguration() {
-    return array(
-      'label_display' => FALSE,
-    );
+    return ['label_display' => FALSE];
   }
 
   /**
diff --git a/core/modules/system/src/Block/SystemPageTitleBlock.php b/core/modules/system/src/Block/SystemPageTitleBlock.php
index 142dd63..e8bf660 100644
--- a/core/modules/system/src/Block/SystemPageTitleBlock.php
+++ b/core/modules/system/src/Block/SystemPageTitleBlock.php
@@ -88,9 +88,7 @@ public static function create(ContainerInterface $container, array $configuratio
    * {@inheritdoc}
    */
   public function defaultConfiguration() {
-    return array(
-      'label_display' => FALSE,
-    );
+    return ['label_display' => FALSE];
   }
 
   /**
@@ -107,9 +105,7 @@ public function build() {
       return FALSE;
     }
 
-    $build['title'] = array(
-      '#markup' => $title,
-    );
+    $build['title'] = ['#markup' => $title];
 
     return $build;
   }