[PATCH] Fix type-change handling when assigning the status code to filepairs.

[PATCH] Fix type-change handling when assigning the status code to filepairs.

The interim single-liner '?' fix resulted delete entries that
should not have emitted coming out in the output as an
unintended side effect; I caught this with the "rename" test in
the test suite.  This patch instead fixes the code that assigns
the status code to each filepair.

I verified this does not break the testcase in udev.git tree Kay
Sievers gave us, by running git-diff-tree on that tree which
showed 21 file to symlink changes.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>