diff --git a/core/modules/system/tests/modules/plugin_test/lib/Drupal/plugin_test/Controller/PluginTest.php b/core/modules/system/tests/modules/plugin_test/lib/Drupal/plugin_test/Controller/PluginTest.php
index 090a446..5ec7fa4 100644
--- a/core/modules/system/tests/modules/plugin_test/lib/Drupal/plugin_test/Controller/PluginTest.php
+++ b/core/modules/system/tests/modules/plugin_test/lib/Drupal/plugin_test/Controller/PluginTest.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * @file
  * Contains \Drupal\plugin_test\Controller\PluginTest.
@@ -9,7 +10,7 @@
 use Drupal\plugin_test\Plugin\CachedMockBlockManager;
 
 /**
- * Returns a test page and sets the title.
+ * Returns a test page containing plugin labels.
  */
 class PluginTest {
 
@@ -29,4 +30,5 @@ public function testDefinitions() {
     }
     return $output;
   }
+
 }