Fix code style issues

lib/Data/S3Storage.php

@@ -87,6 +87,7 @@ class S3Storage extends AbstractData
             // ref: https://docs.aws.amazon.com/sdk-for-php/v3/developer-guide/guide_credentials.html#default-credential-chain
             if (isset($options['accesskey']) && isset($options['secretkey'])) {
                 $this->_options['credentials'] = array();
+
                 $this->_options['credentials']['key']    = $options['accesskey'];
                 $this->_options['credentials']['secret'] = $options['secretkey'];
             }