== sanity test 413k: QoS mkdir exclude prefixes ========== 08:49:15 (1789390155)
lmv.lustre-clilmv-ffff996c50c98800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff996c50c98800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff996c50c98800.qos_exclude_prefixes=_temporary