expireover option missing in 2.3

[Katsuhiro Kondou]

In article <20000824185554.A6067 at becile.teaser.fr>,
	Laurent Frigault <lfrigault at teaser.fr> wrote;

} Humm, it does not appear to work like that on my test machine. Do you
} check on a server with nnrpdcheckart set to false ?

nnrpdcheckart does not matter expireover.  Oh, I've forgot
to say expireover does different behavior on groupbaseexpiry.
If false, it examines the existense of articles to determine
overview should be left.  If true, it reads expire.ctl and
purges articles also.
-- 
Katsuhiro Kondou