== sanity test 413k: QoS mkdir exclude prefixes ========== 18:17:28 (1787609848)
lmv.lustre-clilmv-ffff999b05ebf800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff999b05ebf800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff999b05ebf800.qos_exclude_prefixes=_temporary