== sanity test 413k: QoS mkdir exclude prefixes ========== 11:11:58 (1788534718)
lmv.lustre-clilmv-ffff9b244a7c1800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9b244a7c1800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9b244a7c1800.qos_exclude_prefixes=_temporary