== sanity test 413k: QoS mkdir exclude prefixes ========== 09:39:22 (1790689162)
lmv.lustre-clilmv-ffff8bb7d82c3800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8bb7d82c3800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8bb7d82c3800.qos_exclude_prefixes=_temporary