t/{t5541,lib-httpd}: replace problematic '!()' notation with test_must_fail

diff --git a/t/t3300-funny-names.sh b/t/t3300-funny-names.sh
index db46d53e8271c0410a0dbf53a3560a8b635e2853..a99e4d8b923cd0d85e5f7e875af4182d2238c9fb 100755 (executable)
--- a/t/t3300-funny-names.sh
+++ b/t/t3300-funny-names.sh
@@ -26,7 +26,7 @@ echo 'Foo Bar Baz' >"$p2"
 
 test -f "$p1" && cmp "$p0" "$p1" || {
        # since FAT/NTFS does not allow tabs in filenames, skip this test
-       say 'Your filesystem does not allow tabs in filenames, test skipped.'
+       skip_all='Your filesystem does not allow tabs in filenames, test skipped.'
        test_done
 }