From mboxrd@z Thu Jan  1 00:00:00 1970
From: Karl Chen <quarl@cs.berkeley.edu>
Subject: git-update-index -q
Date: Tue, 02 Sep 2008 10:51:50 -0700
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The git-update-index man page entry for -q says:

       -q
           Quiet. If --refresh finds that the index needs an
           update, the default behavior is to error out. This
           option makes git-update-index continue anyway.

Can someone explain this to me?  As far as I can tell,
git-update-index without -q does not error out after the first
update.