== sanity test 413k: QoS mkdir exclude prefixes ========== 15:07:12 (1787857632)
lmv.lustre-clilmv-ffff9e9c11e99800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9e9c11e99800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9e9c11e99800.qos_exclude_prefixes=_temporary