== sanity test 413k: QoS mkdir exclude prefixes ========== 17:08:28 (1784408908)
lmv.lustre-clilmv-ffff9caa8789b800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9caa8789b800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9caa8789b800.qos_exclude_prefixes=_temporary