difftool--helper: Remove use of the GIT_MERGE_TOOL variable
authorDavid Aguilar <davvid@gmail.com>
Sun, 10 Jan 2010 04:02:41 +0000 (20:02 -0800)
committerJunio C Hamano <gitster@pobox.com>
Sun, 10 Jan 2010 06:41:29 +0000 (22:41 -0800)
commit61ed71dcff8448b0700ef032aa1f962649306624
treeab6c9baa1021cd234ea7505d209a4bcd5e7349bc
parentdb367136605868f5971d42501a48820ccdcb8b08
difftool--helper: Remove use of the GIT_MERGE_TOOL variable

An undocumented mis-feature in git-difftool is that it allows you
to specify a default difftool by setting GIT_MERGE_TOOL.
This behavior was never documented and was included as an
oversight back when git-difftool was maintained outside of git.

git-mergetool never honored GIT_MERGE_TOOL so neither should
git-difftool.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-difftool--helper.sh
t/t7800-difftool.sh