Leaking file descriptors from config.Load

[ear7h]

I think the following function is leaking file descriptors by not calling Close on the http request or opened file:

tegola/config/config.go

Lines 285 to 320 in ac82d5f

	func Load(location string) (conf Config, err error) {
	var reader io.Reader
	// check for http prefix
	if strings.HasPrefix(location, "http") {
	log.Infof("loading remote config (%v)", location)
	// setup http client with a timeout
	var httpClient = &http.Client{
	Timeout: time.Second * 10,
	}
	// make the http request
	res, err := httpClient.Get(location)
	if err != nil {
	return conf, fmt.Errorf("error fetching remote config file (%v): %v ", location, err)
	}
	// set the reader to the response body
	reader = res.Body
	} else {
	log.Infof("loading local config (%v)", location)
	// check the conf file exists
	if _, err := os.Stat(location); os.IsNotExist(err) {
	return conf, fmt.Errorf("config file at location (%v) not found", location)
	}
	// open the config file
	reader, err = os.Open(location)
	if err != nil {
	return conf, fmt.Errorf("error opening local config file (%v): %v ", location, err)
	}
	}
	return Parse(reader, location)
	}