== sanity test 413k: QoS mkdir exclude prefixes ========== 01:04:23 (1788843863)
lmv.lustre-clilmv-ffff9246c57c7000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9246c57c7000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9246c57c7000.qos_exclude_prefixes=_temporary