== sanity test 413k: QoS mkdir exclude prefixes ========== 20:27:59 (1788568079)
lmv.lustre-clilmv-ffff9fc9c862a800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9fc9c862a800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9fc9c862a800.qos_exclude_prefixes=_temporary