message: get_active_producers bugfix
diff: @@ -525,9 +525,9 @@ class producer_api : public context_aware_api {
  int get_active_producers(array_ptr<chain::account_name> producers, size_t datalen) {
  auto active_producers = context.get_active_producers();
  - size_t len = active_producers.size() * sizeof(chain::account_name);
  + size_t len = active_producers.size();
  size_t cpy_len = std::min(datalen, len);
  - memcpy(producers, active_producers.data(), cpy_len);
  + memcpy(producers, active_producers.data(), cpy_len * sizeof(chain::account_name));
  return len;
  }
  };
  