message: Fix return value when throws connection_exception in cleos
diff: @@ -3083,6 +3083,7 @@ int main( int argc, char** argv ) {
  if (verbose_errors) {
  elog("connect error: ${e}", ("e", e.to_detail_string()));
  }
  + return 1;
  } catch (const fc::exception& e) {
  // attempt to extract the error code if one is present
  if (!print_recognized_errors(e, verbose_errors)) {
  