Hice sudo apt-get update && sudo apt-get upgrade. Continuó hasta que llegó al paquete sudo, cuyo archivo sudoers está modificado. Llamé a la diferencia en VIM y salí con :q. En lugar de volver a avisarme, tomó la acción predeterminada y mantuvo mi versión modificada.
Tenía la intención de instalar la versión distribuida del paquete de /etc/sudoers, ¿cómo puedo hacer esto en retrospectiva? Lo intenté apt-get install --reinstall sudo, sin cambios.
Salida de apt-get upgrade:
Setting up sudo (1.8.16-0ubuntu1.2) ...
Configuration file '/etc/sudoers'
==> Modified (by you or by a script) since installation.
==> Package distributor has shipped an updated version.
What would you like to do about it ? Your options are:
Y or I : install the package maintainer's version
N or O : keep your currently-installed version
D : show the differences between the versions
Z : start a shell to examine the situation
The default action is to keep your current version.
*** sudoers (Y/I/N/O/D/Z) [default=N] ? D
Configuration file '/etc/sudoers'
==> Modified (by you or by a script) since installation.
==> Package distributor has shipped an updated version.
What would you like to do about it ? Your options are:
Y or I : install the package maintainer's version
N or O : keep your currently-installed version
D : show the differences between the versions
Z : start a shell to examine the situation
The default action is to keep your current version.
*** sudoers (Y/I/N/O/D/Z) [default=N] ?
...