New option: -c (Consider an unset change_name an error).
(unset_change_name_is_error): New variable. (check_persons): Check change_name if unset_change_name_is_error is set. Set it if -r is given, or offer to set it if -i is given. (main): Recognize -c and set unset_change_name_is_error if given.
Showing with 27 additions and 5 deletions