== sanity test 413k: QoS mkdir exclude prefixes ========== 10:55:23 (1788533723)
lmv.lustre-clilmv-ffff9a06c9ddf000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9a06c9ddf000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9a06c9ddf000.qos_exclude_prefixes=_temporary