== sanity test 413k: QoS mkdir exclude prefixes ========== 10:39:47 (1773239987)
lmv.lustre-clilmv-ffff9d9138b88000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d9138b88000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d9138b88000.qos_exclude_prefixes=_temporary