== sanity test 413k: QoS mkdir exclude prefixes ========== 12:05:37 (1788278737)
lmv.lustre-clilmv-ffff9666480c8000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9666480c8000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9666480c8000.qos_exclude_prefixes=_temporary