fix docblock position

The `$defaultLocale` argument is present in the `Translator` class of
the FrameworkBundle, but is not part of the Translation component.

src/Symfony/Bundle/FrameworkBundle/Translation/Translator.php

@@ -50,6 +50,7 @@ class Translator extends BaseTranslator implements WarmableInterface
      *
      * @param ContainerInterface $container     A ContainerInterface instance
      * @param MessageSelector    $selector      The message selector for pluralization
+     * @param string             $defaultLocale
      * @param array              $loaderIds     An array of loader Ids
      * @param array              $options       An array of options
      *

src/Symfony/Component/Translation/Translator.php

@@ -76,7 +76,6 @@ class Translator implements TranslatorInterface, TranslatorBagInterface
      *
      * @param string               $locale   The locale
      * @param MessageSelector|null $selector The message selector for pluralization
-     * @param string               $defaultLocale
      * @param string|null          $cacheDir The directory to use for the cache
      * @param bool                 $debug    Use cache in debug mode ?
      *