== sanity test 413k: QoS mkdir exclude prefixes ========== 23:08:23 (1772424503)
lmv.lustre-clilmv-ffff9dec09f84800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9dec09f84800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9dec09f84800.qos_exclude_prefixes=_temporary