diff -u b/core/modules/help/help.api.php b/core/modules/help/help.api.php
--- b/core/modules/help/help.api.php
+++ b/core/modules/help/help.api.php
@@ -4,6 +4,7 @@
  * @file
  * Hooks for the Help system.
  */
+
 use Drupal\Core\Url;
 
 /**
diff -u b/core/modules/system/system.tokens.inc b/core/modules/system/system.tokens.inc
--- b/core/modules/system/system.tokens.inc
+++ b/core/modules/system/system.tokens.inc
@@ -130,14 +130,14 @@
 
         case 'url':
           /** @var \Drupal\Core\GeneratedUrl $result */
-          $result = Url::fromRoute('<front>', [], $url_options)->toString(true);
+          $result = Url::fromRoute('<front>', [], $url_options)->toString(TRUE);
           $bubbleable_metadata->addCacheableDependency($result);
           $replacements[$original] = $result->getGeneratedUrl();
           break;
 
         case 'url-brief':
           /** @var \Drupal\Core\GeneratedUrl $result */
-          $result = Url::fromRoute('<front>', [], $url_options)->toString(true);
+          $result = Url::fromRoute('<front>', [], $url_options)->toString(TRUE);
           $bubbleable_metadata->addCacheableDependency($result);
           $replacements[$original] = preg_replace(['!^https?://!', '!/$!'], '', $result->getGeneratedUrl());
           break;