== sanity test 413k: QoS mkdir exclude prefixes ========== 09:53:45 (1741701225)
lmv.lustre-clilmv-ffff8800b5ce7800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800b5ce7800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800b5ce7800.qos_exclude_prefixes=_temporary