t / t5100 / info0014--scissorson commit setup: set env $GIT_WORK_TREE when work tree is set, like $GIT_DIR (d95138e)
   1Author: Junio C Hamano
   2Email: gitster@pobox.com
   3Subject: Teach mailinfo to ignore everything before -- >8 -- mark
   4Date: Thu, 20 Aug 2009 17:18:22 -0700
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