diff -u b/core/lib/Drupal/Core/Logger/LogMessageParser.php b/core/lib/Drupal/Core/Logger/LogMessageParser.php
--- b/core/lib/Drupal/Core/Logger/LogMessageParser.php
+++ b/core/lib/Drupal/Core/Logger/LogMessageParser.php
@@ -30,7 +30,8 @@
         }
       }
       if (!empty($key) && ($key[0] === '@' || $key[0] === '%' || $key[0] === ':')) {
-        // The key is now in \Drupal\Component\Utility\SafeMarkup::format() style.
+        // The key is now in \Drupal\Component\Utility\SafeMarkup::format()
+        // style.
         $variables[$key] = $variable;
       }
     }