== sanity test 413k: QoS mkdir exclude prefixes ========== 07:01:25 (1762171285)
lmv.lustre-clilmv-ffff8acb83f5e000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8acb83f5e000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8acb83f5e000.qos_exclude_prefixes=_temporary