Bagaimana cara menjaga file konfigurasi secara otomatis selama peningkatan atau pemasangan apt-get?

Saat melakukan dan apt-get update; apt-get upgrade -ydi server saya menemukan pesan: Setting up sudo (1.8.16-0ubuntu1.5) ... Configuration file '/etc/sudoers' ==> Modified (by you or by a script) since installation. ==> Package distributor has shipped an updated version. What would you like...