== sanity test 413k: QoS mkdir exclude prefixes ========== 05:04:04 (1788599044)
lmv.lustre-clilmv-ffff91f417b2f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff91f417b2f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff91f417b2f800.qos_exclude_prefixes=_temporary