difftool: remove obsolete (and misleading) comment
authorJohannes Schindelin <johannes.schindelin@gmx.de>
Thu, 14 Mar 2019 11:25:03 +0000 (04:25 -0700)
committerJunio C Hamano <gitster@pobox.com>
Mon, 18 Mar 2019 02:44:12 +0000 (11:44 +0900)
We will always spawn something from `git difftool`, so we will always
have to set `GIT_DIR` and `GIT_WORK_TREE`.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
No differences found