== sanity test 413k: QoS mkdir exclude prefixes ========== 08:11:27 (1730812287)
lmv.lustre-clilmv-ffff8800b435f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800b435f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800b435f800.qos_exclude_prefixes=_temporary