Use value_to_c_string in print_value

It was still using the old static buffer method.

c/ton/main.c

@@ -38,14 +38,12 @@ int mkdir_p(char *path);
#define debug_print_value(prefix, ctx, val)
#endif
void print_value(char *prefix, JSContextRef ctx, JSValueRef exception) {
	if (exception != NULL) {
		JSStringRef ex_str = to_string(ctx, exception);
		char ex_buf[1000];
		ex_buf[0] = '\0';
		JSStringGetUTF8CString(ex_str, ex_buf, 1000-1);
		printf("%s%s\n", prefix, ex_buf);
		JSStringRelease(ex_str);
void print_value(char *prefix, JSContextRef ctx, JSValueRef val) {
	if (val != NULL) {
		JSStringRef str = to_string(ctx, val);
		char *ex_str = value_to_c_string(ctx, JSValueMakeString(ctx, str));
		printf("%s%s\n", prefix, ex_str);
		free(ex_str);
	}
}