== sanity test 413k: QoS mkdir exclude prefixes ========== 18:19:24 (1788473964)
lmv.lustre-clilmv-ffff8f512116a800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8f512116a800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8f512116a800.qos_exclude_prefixes=_temporary