== sanity test 413k: QoS mkdir exclude prefixes ========== 16:45:23 (1738964723)
lmv.lustre-clilmv-ffff880134a54800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff880134a54800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff880134a54800.qos_exclude_prefixes=_temporary