Merge pull request #469 from don-philipe/Print-version-to-stdout

Print version, help etc to stdout

main.go

@@ -265,6 +265,7 @@ func main() {
 	promlogConfig := &promlog.Config{}
 	flag.AddFlags(kingpin.CommandLine, promlogConfig)
 	kingpin.Version(version.Print("statsd_exporter"))
+	kingpin.CommandLine.UsageWriter(os.Stdout)
 	kingpin.HelpFlag.Short('h')
 	kingpin.Parse()
 	logger := promlog.New(promlogConfig)