code: func NewStatsdClient(addr string, prefix string) *StatsdClient {
  	// allow %HOST% in the prefix string
  	prefix = strings.Replace(prefix, "%HOST%", Hostname, 1)
  	return &StatsdClient{
  		addr:   addr,
  		prefix: prefix,
  		Logger: log.New(os.Stdout, "[StatsdClient] ", log.Ldate|log.Ltime),
  	}
  }
docs: // NewStatsdClient - Factory