fix: Change "namespace" word positioning

Author: matiasperrone-exo

app/Http/Controllers/Apis/Protected/Main/OAuth2TagsApiController.php

@@ -1,4 +1,7 @@
-<?php namespace App\Http\Controllers;
+<?php
+
+namespace App\Http\Controllers;
+
 /**
  * Copyright 2017 OpenStack Foundation
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -342,4 +345,4 @@ public function deleteTag($tag_id){
             return $this->deleted();
         });
     }
-}
+}