== sanity test 413k: QoS mkdir exclude prefixes ========== 22:20:28 (1787451628)
lmv.lustre-clilmv-ffff8ffd878d5800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8ffd878d5800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8ffd878d5800.qos_exclude_prefixes=_temporary