== sanity test 413k: QoS mkdir exclude prefixes ========== 02:35:12 (1744180512)
lmv.lustre-clilmv-ffff880131416000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff880131416000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff880131416000.qos_exclude_prefixes=_temporary