== sanity test 413k: QoS mkdir exclude prefixes ========== 07:36:28 (1789990588)
lmv.lustre-clilmv-ffff99ff46fae000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff99ff46fae000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff99ff46fae000.qos_exclude_prefixes=_temporary