diff --git a/core/lib/Drupal/Core/CoreBundle.php b/core/lib/Drupal/Core/CoreBundle.php
index 9ef08f6..f16edda 100644
--- a/core/lib/Drupal/Core/CoreBundle.php
+++ b/core/lib/Drupal/Core/CoreBundle.php
@@ -372,13 +372,13 @@ protected function registerRouting(ContainerBuilder $container) {
     // Add core route enhancers to dynamically derive the _controller
     $container->register('route_enhancer.ajax', 'Drupal\Core\Routing\Enhancer\AjaxEnhancer')
       ->addArgument(new Reference('content_negotiation'))
-       ->addTag('route_enhancer', array('priority' => 20));
+      ->addTag('route_enhancer', array('priority' => 20));
     $container->register('route_enhancer.form', 'Drupal\Core\Routing\Enhancer\FormEnhancer')
       ->addArgument(new Reference('content_negotiation'))
-       ->addTag('route_enhancer', array('priority' => 10));
+      ->addTag('route_enhancer', array('priority' => 10));
     $container->register('route_enhancer.page', 'Drupal\Core\Routing\Enhancer\PageEnhancer')
       ->addArgument(new Reference('content_negotiation'))
-       ->addTag('route_enhancer', array('priority' => 0));
+      ->addTag('route_enhancer', array('priority' => 0));
 
     $container->addCompilerPass(new RegisterRouteEnhancersPass());
   }
diff --git a/core/lib/Drupal/Core/Routing/Enhancer/AjaxEnhancer.php b/core/lib/Drupal/Core/Routing/Enhancer/AjaxEnhancer.php
index daa9041..1fd99ea 100644
--- a/core/lib/Drupal/Core/Routing/Enhancer/AjaxEnhancer.php
+++ b/core/lib/Drupal/Core/Routing/Enhancer/AjaxEnhancer.php
@@ -9,7 +9,6 @@
 
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Cmf\Component\Routing\Enhancer\RouteEnhancerInterface;
-
 use Drupal\Core\ContentNegotiation;
 
 /**
@@ -18,12 +17,15 @@
 class AjaxEnhancer implements RouteEnhancerInterface {
 
   /**
-   * Content Negotiation library.
+   * Content negotiation library.
    *
    * @var \Drupal\CoreContentNegotiation
    */
   protected $negotiation;
 
+  /**
+   * Constructs a new \Drupal\Core\Routing\Enhancer\AjaxEnhancer object.
+   */
   public function __construct(ContentNegotiation $negotiation) {
     $this->negotiation = $negotiation;
   }
@@ -46,4 +48,5 @@ public function enhance(array $defaults, Request $request) {
     }
     return $defaults;
   }
+
 }
diff --git a/core/lib/Drupal/Core/Routing/Enhancer/FormEnhancer.php b/core/lib/Drupal/Core/Routing/Enhancer/FormEnhancer.php
index b56d7c3..2210d03 100644
--- a/core/lib/Drupal/Core/Routing/Enhancer/FormEnhancer.php
+++ b/core/lib/Drupal/Core/Routing/Enhancer/FormEnhancer.php
@@ -5,12 +5,10 @@
  * Contains \Drupal\Core\Routing\Enhancer\FormEnhancer.
  */
 
-
 namespace Drupal\Core\Routing\Enhancer;
 
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Cmf\Component\Routing\Enhancer\RouteEnhancerInterface;
-
 use Drupal\Core\ContentNegotiation;
 
 /**
@@ -18,14 +16,16 @@
  */
 class FormEnhancer implements RouteEnhancerInterface {
 
-
   /**
-   * Content Negotiation library.
+   * Content negotiation library.
    *
    * @var \Drupal\CoreContentNegotiation
    */
   protected $negotiation;
 
+  /**
+   * Constructs a new \Drupal\Core\Routing\Enhancer\FormEnhancer object.
+   */
   public function __construct(ContentNegotiation $negotiation) {
     $this->negotiation = $negotiation;
   }
@@ -39,4 +39,5 @@ public function enhance(array $defaults, Request $request) {
     }
     return $defaults;
   }
+
 }
diff --git a/core/lib/Drupal/Core/Routing/Enhancer/PageEnhancer.php b/core/lib/Drupal/Core/Routing/Enhancer/PageEnhancer.php
index 1c0611f..3d73e9e 100644
--- a/core/lib/Drupal/Core/Routing/Enhancer/PageEnhancer.php
+++ b/core/lib/Drupal/Core/Routing/Enhancer/PageEnhancer.php
@@ -9,7 +9,6 @@
 
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Cmf\Component\Routing\Enhancer\RouteEnhancerInterface;
-
 use Drupal\Core\ContentNegotiation;
 
 /**
@@ -18,12 +17,15 @@
 class PageEnhancer implements RouteEnhancerInterface {
 
   /**
-   * Content Negotiation library.
+   * Content negotiation library.
    *
    * @var \Drupal\CoreContentNegotiation
    */
   protected $negotiation;
 
+  /**
+   * Constructs a new \Drupal\Core\Routing\Enhancer\PageEnhancer object.
+   */
   public function __construct(ContentNegotiation $negotiation) {
     $this->negotiation = $negotiation;
   }
@@ -37,4 +39,5 @@ public function enhance(array $defaults, Request $request) {
     }
     return $defaults;
   }
+
 }
diff --git a/core/modules/system/lib/Drupal/system/Tests/Routing/RouterTest.php b/core/modules/system/lib/Drupal/system/Tests/Routing/RouterTest.php
index 532451b..352e89f 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Routing/RouterTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Routing/RouterTest.php
@@ -111,7 +111,6 @@ public function testDynamicRoutes() {
    * Checks that a request with text/html response gets rendered as a page.
    */
   public function testControllerResolutionPage() {
-
     $this->drupalGet('/router_test/test10');
 
     $this->assertRaw('abcde', 'Correct body was found.');