func printUsage(w io.Writer) {
	bw := bufio.NewWriter(w)
	tmpl(bw, usageTemplate, commands)
	bw.Flush()
}
func printUsage(w io.Writer) {
	bw := bufio.NewWriter(w)
	tmpl(bw, usageTemplate, commands)
	bw.Flush()
}
func printUsage ( w io . Writer ) { bw := bufio . NewWriter ( w ) tmpl ( bw , usageTemplate , commands ) bw . Flush ( ) }
// printUsage prints usageTemplate to w.
printUsage prints usageTemplate to w .