message: Corrected defaults.
diff: @@ -688,7 +688,7 @@ OpSignature GetOpSignature(const OperatorCode* op_code, const Operator* op,
  case BuiltinOperator_ADD: {
  auto add_option = op->builtin_options_as_AddOptions();
  - op_sig.options.addsub.pot_scale_int16 = false;
  + op_sig.options.addsub.pot_scale_int16 = true;
  if (add_option) {
  op_sig.options.addsub.pot_scale_int16 = add_option->pot_scale_int16();
  }
  @@ -696,7 +696,7 @@ OpSignature GetOpSignature(const OperatorCode* op_code, const Operator* op,
  case BuiltinOperator_SUB: {
  auto sub_option = op->builtin_options_as_SubOptions();
  - op_sig.options.addsub.pot_scale_int16 = false;
  + op_sig.options.addsub.pot_scale_int16 = true;
  op_sig.options.addsub.need_broadcast = false;
  op_sig.options.addsub.num_dims = 1;
  if (sub_option) {
  