== sanity test 413k: QoS mkdir exclude prefixes ========== 16:56:55 (1764799015)
lmv.lustre-clilmv-ffff8e5747d76000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8e5747d76000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8e5747d76000.qos_exclude_prefixes=_temporary