== sanity test 413k: QoS mkdir exclude prefixes ========== 23:19:11 (1788751151)
lmv.lustre-clilmv-ffff941b9ab5a800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff941b9ab5a800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff941b9ab5a800.qos_exclude_prefixes=_temporary