== sanity test 413k: QoS mkdir exclude prefixes ========== 14:51:51 (1782931911)
lmv.lustre-clilmv-ffff9d6d43606800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d6d43606800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d6d43606800.qos_exclude_prefixes=_temporary