fix error in reflection build example
@@ -30,7 +30,7 @@ int main(int argc, char *argv[]) {
ecs_os_free(str);
// Convert entity & all its components to json
- str = ecs_entity_to_json(ecs, ent);
+ str = ecs_entity_to_json(ecs, ent, NULL);
printf("ent = %s\n", str);
ecs_os_free(str);
