== sanity test 413k: QoS mkdir exclude prefixes ========== 20:51:05 (1786841465)
lmv.lustre-clilmv-ffff941cc08bb000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff941cc08bb000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff941cc08bb000.qos_exclude_prefixes=_temporary