== sanity test 413k: QoS mkdir exclude prefixes ========== 13:33:00 (1788629580)
lmv.lustre-clilmv-ffff8e32999be800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8e32999be800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8e32999be800.qos_exclude_prefixes=_temporary