== sanity test 413k: QoS mkdir exclude prefixes ========== 06:26:28 (1786184788)
lmv.lustre-clilmv-ffff98fa47ce6800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff98fa47ce6800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff98fa47ce6800.qos_exclude_prefixes=_temporary