
	-a	Force all messages in holding queues to be re-routed.
	-e	Re-route matching messages in `_bad' that seem re-routable.
	-s	Silently.
	-v	Show each message rerouted.

	The <address> argument should be <old-link>
	if any of the following three flags are used.

	-b	Break link to <old-link>.
	-d	Mark link to <old-link> dead.
	-f	Force all messages queued for <old-link> to be re-routed.
