From: Simon McVittie <smcv@debian.org>
Date: Wed, 28 Dec 2016 18:02:59 +0000 (+0000)
Subject: git: Turn $git_dir into a stack
X-Git-Tag: debian/3.20120629.2+deb7u2~22
X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/commitdiff_plain/d63cdb37dafe631968d000068f37edaea8018066?ds=inline;hp=d63cdb37dafe631968d000068f37edaea8018066

git: Turn $git_dir into a stack

This will be necessary when we use a secondary working tree to do
reverts without leaving the primary working tree in an inconsistent
state.

(cherry picked from commit 39b8931ad31fe6b48afdc570caa459a0996c2092)
---