ruleup: dirty by default
Replace the --dirty option with a new --clean option.
Requested by Canik and Caedo at the Freeciv forum. http://forum.freeciv.org/f/viewtopic.php?f=11&t=91862&sid=127735f2b4233e03427ccaf0429420f5
Replace the --dirty option with a new --clean option.
Requested by Canik and Caedo at the Freeciv forum. http://forum.freeciv.org/f/viewtopic.php?f=11&t=91862&sid=127735f2b4233e03427ccaf0429420f5