Issue #2105805 by StephaneQ: Fix docs for RouteSubscriber class

core/modules/system/lib/Drupal/system/Routing/RouteSubscriber.php

@@ -13,7 +13,7 @@
 use Symfony\Component\Routing\Route;
 
 /**
- * Event subscriber for routes.
+ * Provides dynamic routes for theme administration.
  */
 class RouteSubscriber implements EventSubscriberInterface {