Read user's configuration from otherwise unused field ``full_name`` in
    passwd file.

    Configuration is stored in string as list of t/f characters.

def read_user_config(username, path=settings.LOGIN_FILE):
    """
    Read user's configuration from otherwise unused field ``full_name`` in
    passwd file.

    Configuration is stored in string as list of t/f characters.
    """
    return _decode_config(load_users(path=path)[username]["full_name"])