== sanity test 413k: QoS mkdir exclude prefixes ========== 16:22:45 (1734124965)
lmv.lustre-clilmv-ffff8800b5ba6800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800b5ba6800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800b5ba6800.qos_exclude_prefixes=_temporary