== sanity test 413k: QoS mkdir exclude prefixes ========== 22:45:14 (1712025914)
lmv.lustre-clilmv-ffff8800ad80f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800ad80f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800ad80f800.qos_exclude_prefixes=_temporary