diff.c: convert -U|--unified

diff --git a/t/t1011-read-tree-sparse-checkout.sh b/t/t1011-read-tree-sparse-checkout.sh
index 0c6f48f3024c81de765a8acb489e2d5e3ec42a56..ba71b159ba8ce1aae9c13d470bdceb7963da58da 100755 (executable)
--- a/t/t1011-read-tree-sparse-checkout.sh
+++ b/t/t1011-read-tree-sparse-checkout.sh
@@ -227,12 +227,11 @@ test_expect_success 'index removal and worktree narrowing at the same time' '
 '
 
 test_expect_success 'read-tree --reset removes outside worktree' '
-       >empty &&
        echo init.t >.git/info/sparse-checkout &&
        git checkout -f top &&
        git reset --hard removed &&
        git ls-files sub/added >result &&
-       test_cmp empty result
+       test_must_be_empty result
 '
 
 test_expect_success 'print errors when failed to update worktree' '