prefix.go
func (ui *PrefixUI) Output(message string) {
	if ui.OutputPrefix == " " { //Lets keep the space if they want one
		message = ui.OutputPrefix + message
	} else if ui.OutputPrefix != "" {
		message = ui.OutputPrefix + " " + message
	}
	ui.UI.Output(message)
}
func (ui *PrefixUI) Output(message string) {
	if ui.OutputPrefix == " " { //Lets keep the space if they want one
		message = ui.OutputPrefix + message
	} else if ui.OutputPrefix != "" {
		message = ui.OutputPrefix + " " + message
	}
	ui.UI.Output(message)
}
// Output calls UI.Output to write.
// OutputPrefix is used to prefix the message.