code: func (r *readlineUI) Print(args ...interface{}) {
  	text := fmt.Sprint(args...)
  	if !strings.HasSuffix(text, "\n") {
  		text += "\n"
  	}
  	fmt.Fprint(r.rl.Stderr(), text)
  }
docs: // Print shows a message to the user.
  // It is printed over stderr as stdout is reserved for regular output.