t / t5100 / info0010on commit tests: use "test_cmp", not "diff", when verifying the result (4fdf71b)
   1Author: Lukas Sandström
   2Email: lukass@etek.chalmers.se
   3Subject: git-mailinfo: Fix getting the subject from the body
   4Date: Thu, 10 Jul 2008 23:41:33 +0200
   5