== sanity test 413k: QoS mkdir exclude prefixes ========== 21:21:44 (1746148904)
lmv.lustre-clilmv-ffff8800b6013800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800b6013800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800b6013800.qos_exclude_prefixes=_temporary