Major changes:

Job names are now "runtime.queue" where runtime is when the job will run
in Unix time format.  This is what SysV at does and allows us to nuke
the .SEQ file.
Historic BSD options for atq and atrm are now implemented;
atq and atrm get their own man pages.
At no longer does anything with the -v flag.  We print the execution
time when jobs are submitted so there is no need.
Most *scanf() usage is gone (one remains in atrun).
Better sanity checks in atrun.
Random style/cleanup.
With these changes we have the best of both worlds; POSIX compliance with
the traditional BSD features.

src/etc/Makefile

@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.160 2002/05/13 07:22:42 espie Exp $
+#	$OpenBSD: Makefile,v 1.161 2002/05/14 18:05:38 millert Exp $
 
 TZDIR=		/usr/share/zoneinfo
 LOCALTIME=	US/Pacific
@@ -187,8 +187,6 @@ distribution-etc-root-var: distrib-dirs
 		${DESTDIR}/etc/skeykeys
 	${INSTALL} -c -o root -g crontab -m 660 /dev/null \
 		${DESTDIR}/var/at/at.deny
-	${INSTALL} -c -o root -g crontab -m 660 /dev/null \
-		${DESTDIR}/var/at/.SEQ
 	${INSTALL} -c -o root -g wheel -m 600 /dev/null \
 		${DESTDIR}/var/cron/log
 	${INSTALL} -c -o root -g wheel -m 444 /dev/null \