== sanity test 413k: QoS mkdir exclude prefixes ========== 21:52:23 (1778291543)
lmv.lustre-clilmv-ffff9110343b6800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9110343b6800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9110343b6800.qos_exclude_prefixes=_temporary