== sanity test 413k: QoS mkdir exclude prefixes ========== 00:02:03 (1713412923)
lmv.lustre-clilmv-ffff88012a451000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012a451000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012a451000.qos_exclude_prefixes=_temporary