== sanity test 413k: QoS mkdir exclude prefixes ========== 16:43:47 (1787863427)
lmv.lustre-clilmv-ffff9602d22a3000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9602d22a3000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9602d22a3000.qos_exclude_prefixes=_temporary