== sanity test 413k: QoS mkdir exclude prefixes ========== 21:11:09 (1789089069)
lmv.lustre-clilmv-ffff9f1b6e8b7800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9f1b6e8b7800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9f1b6e8b7800.qos_exclude_prefixes=_temporary