diff -u b/core/modules/system/lib/Drupal/system/Tests/PhpLoader/MTimeProtectedLoaderTest.php b/core/modules/system/lib/Drupal/system/Tests/PhpLoader/MTimeProtectedLoaderTest.php
--- b/core/modules/system/lib/Drupal/system/Tests/PhpLoader/MTimeProtectedLoaderTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/PhpLoader/MTimeProtectedLoaderTest.php
@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Definition of Drupal\system\Tests\PhpLoader\MTimeProtectedLoaderTest
+ * Definition of Drupal\system\Tests\PhpLoader\MTimeProtectedLoaderTest.
  */
 
 namespace Drupal\system\Tests\PhpLoader;
diff -u b/core/modules/system/lib/Drupal/system/Tests/PhpLoader/NativeLoaderTest.php b/core/modules/system/lib/Drupal/system/Tests/PhpLoader/NativeLoaderTest.php
--- b/core/modules/system/lib/Drupal/system/Tests/PhpLoader/NativeLoaderTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/PhpLoader/NativeLoaderTest.php
@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Definition of Drupal\system\Tests\PhpLoader\MTimeProtectedLoaderTest
+ * Definition of Drupal\system\Tests\PhpLoader\NativeLoaderTest.
  */
 
 namespace Drupal\system\Tests\PhpLoader;