== sanity test 413k: QoS mkdir exclude prefixes ========== 14:35:01 (1744137301)
lmv.lustre-clilmv-ffff8800a8071800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800a8071800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800a8071800.qos_exclude_prefixes=_temporary