bisect: remove "checkout_done" variable used when checking merge bases

diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index 6c7b9024822024ca24f7d1ddea63c94d3aa016b0..cbc0c34ce2487959ef0e8f89f7c2a5d4a68be826 100755 (executable)
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -75,7 +75,7 @@ test_expect_success 'init should register submodule url in .git/config' '
        then
                echo "[OOPS] init succeeded but submodule url is wrong"
                false
-       elif ! git config submodule.example.url ./.subrepo
+       elif test_must_fail git config submodule.example.url ./.subrepo
        then
                echo "[OOPS] init succeeded but update of url failed"
                false