== sanity test 413k: QoS mkdir exclude prefixes ========== 10:47:40 (1781621260)
lmv.lustre-clilmv-ffff9fce6038a800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9fce6038a800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9fce6038a800.qos_exclude_prefixes=_temporary