package sudo 1.8.16-0ubuntu1.2 failed to install/upgrade: end of file on stdin at conffile prompt

[Rohit Attri]

Got this:
Errors were encountered while processing:
 sudo
E: Sub-process /usr/bin/dpkg returned an error code (1)
W: Operation was interrupted before it could finish

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: sudo 1.8.16-0ubuntu1.2
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Tue Aug 30 14:43:39 2016
ErrorMessage: end of file on stdin at conffile prompt
InstallationDate: Installed on 2016-05-01 (121 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: sudo
Title: package sudo 1.8.16-0ubuntu1.2 failed to install/upgrade: end of file on stdin at conffile prompt
UpgradeStatus: No upgrade log present (probably fresh install)
VisudoCheck:
 /etc/sudoers: parsed OK
 /etc/sudoers.d/README: parsed OK
mtime.conffile..etc.sudoers: 2016-06-11T11:55:09.780368

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Alberto Salvia Novella (es20490446e)]

Please:

1. Edit the description, so it explains which steps you followed to recreate the bug.
2. Set status to "confirmed".

Thank you.

[Launchpad Janitor (janitor)]

[Expired for sudo (Ubuntu) because there has been no activity for 60 days.]