== sanity test 413k: QoS mkdir exclude prefixes ========== 08:39:22 (1733405962)
lmv.lustre-clilmv-ffff8800abc18000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800abc18000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800abc18000.qos_exclude_prefixes=_temporary