== sanity test 413k: QoS mkdir exclude prefixes ========== 07:34:12 (1730810052)
lmv.lustre-clilmv-ffff8800a8c48800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800a8c48800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800a8c48800.qos_exclude_prefixes=_temporary