~/.bin/rn.go: Always notify, regardless of duration

.bin/rn.go

	winAfter := xGetActiveWindow()
	msg := fmt.Sprintf("Finished running %q in %s", cmdToString(cmd), duration)
	if duration > 30*time.Second && win != winAfter {
	if win != winAfter {
		notifyCompletion(msg)
	}
	fmt.Fprintln(os.Stderr, msg)