== sanity test 413k: QoS mkdir exclude prefixes ========== 01:26:27 (1783142787)
lmv.lustre-clilmv-ffff9de4c8666800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9de4c8666800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9de4c8666800.qos_exclude_prefixes=_temporary