== sanity test 413k: QoS mkdir exclude prefixes ========== 01:47:53 (1783144073)
lmv.lustre-clilmv-ffff8afee0139000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8afee0139000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8afee0139000.qos_exclude_prefixes=_temporary