Defnydd:% 1 [- setup] [ymr' au] Dechreua arbedwr sgrîn ar hap. Fe basir unrhyw ymresymiadau (heblaw am - setup) ymlaen at yr arbedwr sgrîn.
Usage: %1 [-setup] [args] Starts a random screen saver. Any arguments (except -setup) are passed on to the screen saver.