diff.c: convert -U|--unified

diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index 76a7cb0af7955aa618556a43cc9f2a568d8de3e8..aba2d4d6ee415ab5528ed67d518cfb26412f1142 100755 (executable)
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -984,6 +984,11 @@ test_expect_success 'submodule deinit should remove the whole submodule section
        rmdir init
 '
 
+test_expect_success 'submodule deinit should unset core.worktree' '
+       test_path_is_file .git/modules/example/config &&
+       test_must_fail git config -f .git/modules/example/config core.worktree
+'
+
 test_expect_success 'submodule deinit from subdirectory' '
        git submodule update --init &&
        git config submodule.example.foo bar &&