== sanity test 413k: QoS mkdir exclude prefixes ========== 14:02:52 (1747850572)
lmv.lustre-clilmv-ffff8800ab686800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800ab686800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800ab686800.qos_exclude_prefixes=_temporary