== sanity test 413k: QoS mkdir exclude prefixes ========== 10:11:45 (1788876705)
lmv.lustre-clilmv-ffff9f13d8a33800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9f13d8a33800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9f13d8a33800.qos_exclude_prefixes=_temporary