== sanity test 413k: QoS mkdir exclude prefixes ========== 10:28:04 (1788532084)
lmv.lustre-clilmv-ffff8e79902a8800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8e79902a8800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8e79902a8800.qos_exclude_prefixes=_temporary