== sanity test 413k: QoS mkdir exclude prefixes ========== 00:36:33 (1788842193)
lmv.lustre-clilmv-ffff8d8043e6a800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8d8043e6a800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8d8043e6a800.qos_exclude_prefixes=_temporary