[ticket/15276] Update file_info to get size of images

PHPBB3-15276

phpBB/phpbb/storage/storage.php

@@ -193,6 +193,15 @@ class storage
 		}
 	}
 
+	/**
+	 * Get file info.
+	 *
+	 * @param string	$path	The file
+	 *
+	 * @throws \phpbb\storage\exception\not_implemented	When the adapter doesnt implement the method
+	 *
+	 * @return \phpbb\storage\file_info	Returns file_info object
+	 */
 	public function file_info($path)
 	{
 		return new file_info($this->adapter, $path);