diff --git a/core/modules/system/tests/src/Unit/Controller/SystemControllerTest.php b/core/modules/system/tests/src/Unit/Controller/SystemControllerTest.php
index e5346e7..173a430 100644
--- a/core/modules/system/tests/src/Unit/Controller/SystemControllerTest.php
+++ b/core/modules/system/tests/src/Unit/Controller/SystemControllerTest.php
@@ -63,8 +63,8 @@ public function providerTestSetLinkActiveClass() {
       'data-drupal-link-system-path="<front>"',
     );
 
-    // Define all variations that *do* affect whether or not an "is-active" class
-    // is set: all possible situations that can be encountered.
+    // Define all variations that *do* affect whether or not an "is-active"
+    // class is set: all possible situations that can be encountered.
     $situations = array();
 
     // Situations with context: front page, English, no query.