== sanity test 413k: QoS mkdir exclude prefixes ========== 07:28:05 (1787916485)
lmv.lustre-clilmv-ffff8a5fae986000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a5fae986000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a5fae986000.qos_exclude_prefixes=_temporary