Bug fix in ov3.c

[Katsuhiro Kondou]

In article <m11JkBV-000FaDC at independence.ecn.ou.edu>,
	Richard Michael Todd <rmtodd at mailhost.ecn.ou.edu> wrote;

} Well, a ftruncate() would certainly resolve the problem.  On the other hand,
} so would just taking out the error message from tradindexed_search and letting
} it return FALSE to indicate that you've hit the end of the overview data.
} I suppose it's a matter of taste whether you think that the IDX files should
} always have their size represent the max data that group.index thinks could
} be there, or whether it's okay that they can be shorter -- it's not as if we
} have an external specification mandating what the .IDX files should look like.

I see, I'll drop that message instead of ftruncate().
-- 
Katsuhiro Kondou