== sanity test 413k: QoS mkdir exclude prefixes ========== 13:29:21 (1713288561)
lmv.lustre-clilmv-ffff88012b766800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012b766800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012b766800.qos_exclude_prefixes=_temporary