== sanity test 413k: QoS mkdir exclude prefixes ========== 04:04:09 (1786176249)
lmv.lustre-clilmv-ffff9fa91d9da000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9fa91d9da000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9fa91d9da000.qos_exclude_prefixes=_temporary