== sanity test 413k: QoS mkdir exclude prefixes ========== 07:08:07 (1787569687)
lmv.lustre-clilmv-ffff8d3104f1f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8d3104f1f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8d3104f1f800.qos_exclude_prefixes=_temporary