== sanity test 413k: QoS mkdir exclude prefixes ========== 05:55:15 (1727776515)
lmv.lustre-clilmv-ffff8800b5aed800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800b5aed800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800b5aed800.qos_exclude_prefixes=_temporary