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-rwxr-xr-xgit-mergetool.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/git-mergetool.sh b/git-mergetool.sh
index 94511f9d1a..a68b40386b 100755
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -334,7 +334,7 @@ init_merge_tool_path() {
if test -z "$merge_tool"; then
merge_tool=`git config merge.tool`
- if ! valid_tool "$merge_tool"; then
+ if test -n "$merge_tool" && ! valid_tool "$merge_tool"; then
echo >&2 "git config option merge.tool set to unknown tool: $merge_tool"
echo >&2 "Resetting to default..."
unset merge_tool