== sanity test 413k: QoS mkdir exclude prefixes ========== 01:02:12 (1788843732)
lmv.lustre-clilmv-ffff8f7a11316800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8f7a11316800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8f7a11316800.qos_exclude_prefixes=_temporary