== sanity test 413k: QoS mkdir exclude prefixes ========== 04:05:39 (1749542739)
lmv.lustre-clilmv-ffff88012c2e8000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012c2e8000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012c2e8000.qos_exclude_prefixes=_temporary