== sanity test 413k: QoS mkdir exclude prefixes ========== 09:07:12 (1787836032)
lmv.lustre-clilmv-ffff99e310a1d800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff99e310a1d800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff99e310a1d800.qos_exclude_prefixes=_temporary