== sanity test 413k: QoS mkdir exclude prefixes ========== 14:20:51 (1761243651)
lmv.lustre-clilmv-ffff8fb80db93800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8fb80db93800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8fb80db93800.qos_exclude_prefixes=_temporary