diff --git a/core/modules/book/lib/Drupal/book/BookBreadcrumbBuilder.php b/core/modules/book/lib/Drupal/book/BookBreadcrumbBuilder.php
index d712d45..61ec6a4 100644
--- a/core/modules/book/lib/Drupal/book/BookBreadcrumbBuilder.php
+++ b/core/modules/book/lib/Drupal/book/BookBreadcrumbBuilder.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Breadcrumb\BreadcrumbBuilderInterface;
 use Drupal\Core\Entity\EntityManager;
 use Drupal\Core\StringTranslation\TranslationInterface;
-use Drupal\Core\Access\AccessManager;
 use Drupal\Core\Utility\LinkGeneratorInterface;
 
 /**
@@ -40,7 +39,7 @@ class BookBreadcrumbBuilder implements BreadcrumbBuilderInterface {
   protected $linkGenerator;
 
   /**
-   * Constructs the MenuLinkBreadcrumbBuilder.
+   * Constructs the BookBreadcrumbBuilder.
    *
    * @param \Drupal\Core\Entity\EntityManager $entity_manager
    *   The entity manager service.
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/Routing/RouteSubscriber.php b/core/modules/field_ui/lib/Drupal/field_ui/Routing/RouteSubscriber.php
index b841d70..21dd7ac 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/Routing/RouteSubscriber.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/Routing/RouteSubscriber.php
@@ -83,7 +83,7 @@ public function routes(RouteBuildEvent $event) {
           "$path/fields",
           array(
             '_form' => '\Drupal\field_ui\FieldOverview',
-            '_title' => t('Manage fields'),
+            '_title' => 'Manage fields',
           ) + $defaults,
           array('_permission' => 'administer ' . $entity_type . ' fields')
         );
@@ -91,7 +91,10 @@ public function routes(RouteBuildEvent $event) {
 
         $route = new Route(
           "$path/form-display",
-          array('_form' => '\Drupal\field_ui\FormDisplayOverview') + $defaults,
+          array(
+            '_form' => '\Drupal\field_ui\FormDisplayOverview',
+            '_title' => 'Manage form display',
+          ) + $defaults,
           array('_permission' => 'administer ' . $entity_type . ' form display')
         );
         $collection->add("field_ui.form_display_overview.$entity_type", $route);
@@ -111,7 +114,7 @@ public function routes(RouteBuildEvent $event) {
           "$path/display",
           array(
             '_form' => '\Drupal\field_ui\DisplayOverview',
-            '_title' => t('Manage display'),
+            '_title' => 'Manage display',
           ) + $defaults,
           array('_permission' => 'administer ' . $entity_type . ' display')
         );