== sanity test 413k: QoS mkdir exclude prefixes ========== 13:51:18 (1785088278)
lmv.lustre-clilmv-ffff98b850965000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff98b850965000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff98b850965000.qos_exclude_prefixes=_temporary