CCloudStorageService::formatError

public function formatError()
{
	if ($this->errno > 0)
	{
		return GetMessage('CLO_STORAGE_HTTP_ERROR', [
			'#verb#' => $this->verb,
			'#url#' => $this->url,
			'#errno#' => $this->errno,
			'#errstr#' => $this->errstr,
		]);
	}
	return '';
}