== sanity test 413k: QoS mkdir exclude prefixes ========== 15:52:56 (1789069976)
lmv.lustre-clilmv-ffff977f88db4000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff977f88db4000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff977f88db4000.qos_exclude_prefixes=_temporary