== sanity test 413k: QoS mkdir exclude prefixes ========== 20:28:09 (1786753689)
lmv.lustre-clilmv-ffff8ece52368000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8ece52368000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8ece52368000.qos_exclude_prefixes=_temporary