git-compat-util: add xstrdup_or_null helper

diff --git a/t/t3203-branch-output.sh b/t/t3203-branch-output.sh
index 76fe7e0060c20507cb6eb317451b69a2a0c9146d..ba4f98e800f262242ef7925f82dc8d13272fe3ca 100755 (executable)
--- a/t/t3203-branch-output.sh
+++ b/t/t3203-branch-output.sh
@@ -94,13 +94,13 @@ test_expect_success 'git branch -v pattern does not show branch summaries' '
        test_must_fail git branch -v branch*
 '
 
-cat >expect <<'EOF'
-* (no branch)
+test_expect_success 'git branch shows detached HEAD properly' '
+       cat >expect <<EOF &&
+* (detached from $(git rev-parse --short HEAD^0))
   branch-one
   branch-two
   master
 EOF
-test_expect_success 'git branch shows detached HEAD properly' '
        git checkout HEAD^0 &&
        git branch >actual &&
        test_i18ncmp expect actual