🚀 go-pugleaf

For those of you using newspurge:
a bug was discovered --  cancel() calls getuser(uid), but uid has
never been set.  This really doesn't make any difference, however,
if newspurge is executed by root.  Put the following code at the
beginning of main():

	if ((uid = (unsigned) getuid()) >= (unsigned) USIZE)
		xerror("uid too big");