src/core/perfmodel/perfmodel_history.c: fix code formatting

src/core/perfmodel/perfmodel_history.c

@@ -343,7 +343,8 @@ static void dump_reg_model(FILE *f, struct starpu_perfmodel *model, int comb, in
 
 	double a = nan(""), b = nan(""), c = nan("");
 
-	if (model->type == STARPU_NL_REGRESSION_BASED) {
+	if (model->type == STARPU_NL_REGRESSION_BASED)
+	{
 		if (_starpu_regression_non_linear_power(per_arch_model->list, &a, &b, &c) != 0)
 			_STARPU_DISP("Warning: could not compute a non-linear regression for model %s\n", model->symbol);
 	}