iter = niter, niter = str_list_next(old_list, niter)) {
char *old_file = (char *)iter->data;
pkg_t *owner = file_hash_get_file_owner(old_file);
iter = niter, niter = str_list_next(old_list, niter)) {
char *old_file = (char *)iter->data;
pkg_t *owner = file_hash_get_file_owner(old_file);