== sanity test 413k: QoS mkdir exclude prefixes ========== 02:03:13 (1788588193)
lmv.lustre-clilmv-ffff98c83158d800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff98c83158d800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff98c83158d800.qos_exclude_prefixes=_temporary