== sanity test 413k: QoS mkdir exclude prefixes ========== 06:00:45 (1785405645)
lmv.lustre-clilmv-ffffa0f3a549f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffffa0f3a549f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffffa0f3a549f800.qos_exclude_prefixes=_temporary