== sanity test 413k: QoS mkdir exclude prefixes ========== 04:22:50 (1733649770)
lmv.lustre-clilmv-ffff8800b5a06000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800b5a06000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800b5a06000.qos_exclude_prefixes=_temporary