== sanity test 413k: QoS mkdir exclude prefixes ========== 08:49:56 (1789130996)
lmv.lustre-clilmv-ffff8d88615fc800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8d88615fc800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8d88615fc800.qos_exclude_prefixes=_temporary