== sanity test 413k: QoS mkdir exclude prefixes ========== 14:36:03 (1788892563)
lmv.lustre-clilmv-ffff8b0060824000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8b0060824000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8b0060824000.qos_exclude_prefixes=_temporary