untracked-cache: be defensive about missing NULs in index

diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index 93f21ab078080d00100cd63f6b5ee5cdfd636d29..478b82cf9b513a8f45f250de59d519847227f794 100755 (executable)
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -1221,7 +1221,7 @@ test_expect_success 'use --edit-description' '
        EOF
        EDITOR=./editor git branch --edit-description &&
        echo "New contents" >expect &&
-       test_cmp EDITOR_OUTPUT expect
+       test_cmp expect EDITOR_OUTPUT
 '
 
 test_expect_success 'detect typo in branch name when using --edit-description' '