range-diff: allow to diff files regardless of submodule config

diff --git a/t/t3070-wildmatch.sh b/t/t3070-wildmatch.sh
index dce102130fb77ddda7cdc9aa9211507d9c2f2e09..46aca0af102e863f8c46f160d3f2022aee5ba29e 100755 (executable)
--- a/t/t3070-wildmatch.sh
+++ b/t/t3070-wildmatch.sh
@@ -101,8 +101,7 @@ match_with_ls_files() {
 
        match_stdout_stderr_cmp="
                tr -d '\0' <actual.raw >actual &&
-               >expect.err &&
-               test_cmp expect.err actual.err &&
+               test_must_be_empty actual.err &&
                test_cmp expect actual"
 
        if test "$match_expect" = 'E'