== sanity test 413k: QoS mkdir exclude prefixes ========== 09:09:03 (1787144943)
lmv.lustre-clilmv-ffff9ba8060a4800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9ba8060a4800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9ba8060a4800.qos_exclude_prefixes=_temporary