Log Message:
If there's more than one qmail-send running (e.g., /var/qmail2 running
from /service), the rc.d script can't tell which is ours. Make and use
a pidfile.

(The other rc.d scripts set argv[0] to names that are unlikely to
collide, but there's no easy way to do that for the qmail-send process
exec'd by qmail-start.)

Bump PKGREVISION.