== sanity test 413k: QoS mkdir exclude prefixes ========== 07:11:42 (1786187502)
lmv.lustre-clilmv-ffff8ad883c1f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8ad883c1f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8ad883c1f800.qos_exclude_prefixes=_temporary