== sanity test 413k: QoS mkdir exclude prefixes ========== 08:19:18 (1733404758)
lmv.lustre-clilmv-ffff8800b5ce9000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800b5ce9000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800b5ce9000.qos_exclude_prefixes=_temporary