== sanity test 413k: QoS mkdir exclude prefixes ========== 04:22:37 (1788855757)
lmv.lustre-clilmv-ffffa0ba91619800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffffa0ba91619800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffffa0ba91619800.qos_exclude_prefixes=_temporary