== sanity test 413k: QoS mkdir exclude prefixes ========== 03:01:42 (1787122902)
lmv.lustre-clilmv-ffff9341f8041800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9341f8041800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9341f8041800.qos_exclude_prefixes=_temporary