mergetool: don't require a work tree for --tool-help

Signed-off-by: Charles Bailey <cbailey32@bloomberg.net>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-mergetool.sh b/git-mergetool.sh
index 0ff6566a0eff8819023254d39c26ed45670b9a7b..8098d2dc076a0ff6044e5c4cadbb39a4a32483c5 100755 (executable)
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -10,11 +10,11 @@
 
 USAGE='[--tool=tool] [--tool-help] [-y|--no-prompt|--prompt] [file to merge] ...'
 SUBDIRECTORY_OK=Yes
+NONGIT_OK=Yes
 OPTIONS_SPEC=
 TOOL_MODE=merge
 . git-sh-setup
 . git-mergetool--lib
-require_work_tree
 
 # Returns true if the mode reflects a symlink
 is_symlink () {
@@ -377,6 +377,9 @@ prompt_after_failed_merge () {
        done
 }
 
+git_dir_init
+require_work_tree
+
 if test -z "$merge_tool"
 then
        merge_tool=$(get_merge_tool "$merge_tool") || exit