== sanity test 413k: QoS mkdir exclude prefixes ========== 08:54:24 (1790686464)
lmv.lustre-clilmv-ffff9365d9baa800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9365d9baa800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9365d9baa800.qos_exclude_prefixes=_temporary