Update Docbloc

Author: Mathieu Darse

src/VCR/Util/StreamProcessor.php

@@ -280,9 +280,10 @@ public function stream_tell()
  *
  * @link http://www.php.net/manual/en/streamwrapper.url-stat.php
  *
- * @param string $path The file path or URL to stat.
+ * @param string $path The file path or URL to stat.
+ * @param integer $flags Holds additional flags set by the streams API.
  *
- * @return integer Should return as many elements as stat() does.
+ * @return integer  Should return as many elements as stat() does.
  */
  public function url_stat($path, $flags)
  {