expireover.c patch

[Katsuhiro Kondou]

In article <200004162215.RAA15931 at darkside.norand.com>,
	Heath Kehoe <heath.kehoe at intermec.com> wrote;

} Currently, if you kill expireover while it's running, it could corrupt
} overview (at least, with ovdb) because it doesn't have a chance to
} OVclose.  This is a simple fix that allows it to exit cleanly from
} a signal.  This is kind of a bug fix, and I think it is appropriate
} for inclusion into the 2.3 beta.

Applied to both.  Thanks.
-- 
Katsuhiro Kondou