== sanity test 413k: QoS mkdir exclude prefixes ========== 02:40:43 (1790750443)
lmv.lustre-clilmv-ffff8ed971933800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8ed971933800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8ed971933800.qos_exclude_prefixes=_temporary