t / t5100 / info0008on commit setup: set env $GIT_WORK_TREE when work tree is set, like $GIT_DIR (d95138e)
   1Author: Junio C Hamano
   2Email: junio@kernel.org
   3Subject: another patch
   4Date: Fri, 9 Jun 2006 00:44:16 -0700
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