== sanity test 413k: QoS mkdir exclude prefixes ========== 13:32:26 (1787592746)
lmv.lustre-clilmv-ffff8c3646265800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8c3646265800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8c3646265800.qos_exclude_prefixes=_temporary