bug with overview.ctl -- trailing comma in pattern causes coredump

[Katsuhiro Kondou]

In article <IJEELPKKIDJIKOEGBIADGEPFCAAA.rhooper at eisa.com>,
	"Roy Hooper" <rhooper at eisa.com> wrote;

} This was with 2.2.2 running FreeBSD 4.0.

Ok, I've found the problem and just fixed.
-- 
Katsuhiro Kondou