Applied fixes from StyleCI

src/Grant/ClientCredentialsGrant.php

@@ -1,26 +1,25 @@
 <?php
 /**
- * OAuth 2.0 Client credentials grant
+ * OAuth 2.0 Client credentials grant.
  *
- * @package     league/oauth2-server
  * @author      Alex Bilbie <hello@alexbilbie.com>
  * @copyright   Copyright (c) Alex Bilbie
  * @license     http://mit-license.org/
+ *
  * @link        https://github.com/thephpleague/oauth2-server
  */
-
 namespace League\OAuth2\Server\Grant;
 
 use League\OAuth2\Server\ResponseTypes\ResponseTypeInterface;
 use Psr\Http\Message\ServerRequestInterface;
 
 /**
- * Client credentials grant class
+ * Client credentials grant class.
  */
 class ClientCredentialsGrant extends AbstractGrant
 {
     /**
-     * @inheritdoc
+     * {@inheritdoc}
      */
     public function respondToRequest(
         ServerRequestInterface $request,
@@ -41,7 +40,7 @@ class ClientCredentialsGrant extends AbstractGrant
     }
 
     /**
-     * @inheritdoc
+     * {@inheritdoc}
      */
     public function getIdentifier()
     {