message: Do not treat missing config files as error
diff: @@ -296,8 +296,6 @@ error actor_system_config::parse(string_list args, const char* ini_file_cstr) {
  if (auto err = extract_config_file_path(args))
  return err;
  std::ifstream ini{config_file_path};
  - if (config_file_path != default_config_file && !ini)
  - return make_error(sec::cannot_open_file, config_file_path);
  return parse(std::move(args), ini);
  }
  