message: fixed log init
diff: @@ -188,7 +188,9 @@ int main(int argc, char *argv[]) {
  auto config_result =
  parse_iroha_config(FLAGS_config, getCommonObjectsFactory());
  if (auto e = iroha::expected::resultToOptionalError(config_result)) {
  + if (log) {
  log->error("Failed reading the configuration file: {}", e.value());
  + }
  return EXIT_FAILURE;
  }
  auto config = std::move(config_result).assumeValue();
  