== sanity test 413k: QoS mkdir exclude prefixes ========== 05:00:31 (1787475631)
lmv.lustre-clilmv-ffff9be20db50000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9be20db50000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9be20db50000.qos_exclude_prefixes=_temporary