RJ> 2) Setting mtime in the future will probably piss off fsck;
RJ> which in environments with multiple systadmins, or the mailman
RJ> person isn't a sysadmin, could be horribly confusing.
Hmm, hadn't though of that. Hopefully, I've made the termination
cases sufficiently robust so that those lock files won't hang around
long enough to get fsck'd.