== sanity test 413k: QoS mkdir exclude prefixes ========== 01:01:17 (1788843677)
lmv.lustre-clilmv-ffff9392b1477000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9392b1477000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9392b1477000.qos_exclude_prefixes=_temporary