== sanity test 413k: QoS mkdir exclude prefixes ========== 22:34:33 (1786761273)
lmv.lustre-clilmv-ffff98adca6d1000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff98adca6d1000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff98adca6d1000.qos_exclude_prefixes=_temporary