also setlocale() when running tests

#include <locale.h>

#include "zero-pinyin-service.h"

static void

int

main(int argc, char *argv[])

{

	setlocale(LC_ALL, "");

	g_test_init(&argc, &argv, NULL);

	g_test_add_func("/zero/test_GString", test_GString);

	g_test_add_func("/zero/test_build_s_y_fields", test_build_s_y_fields);