== sanity test 413k: QoS mkdir exclude prefixes ========== 20:15:07 (1788567307)
lmv.lustre-clilmv-ffff9058056ed800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9058056ed800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9058056ed800.qos_exclude_prefixes=_temporary