v4 and v5 xfs generate different outputs because v4 xfs only retries
mount with nouuid option once in the test, v5 xfs tries more times(with
xfs_copy running with -d option).
Just be quiet about mounting with nouuid option, it's much easier than
preparing two different 073.outs and selecting the proper one at runtime
Signed-off-by: Eryu Guan <eguan@redhat.com>