== sanity test 413k: QoS mkdir exclude prefixes ========== 20:04:15 (1746144255)
lmv.lustre-clilmv-ffff8800a8d6b800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800a8d6b800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800a8d6b800.qos_exclude_prefixes=_temporary