== sanity test 413k: QoS mkdir exclude prefixes ========== 10:59:49 (1783954789)
lmv.lustre-clilmv-ffff9549675b1000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9549675b1000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9549675b1000.qos_exclude_prefixes=_temporary