package ntp 1:4.2.8p10+dfsg-5ubuntu7.1 failed to install/upgrade: end of file on stdin at conffile prompt

[Don Cullen]

Ran dist package upgrade, it gave error.

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: ntp 1:4.2.8p10+dfsg-5ubuntu7.1
ProcVersionSignature: Ubuntu 4.4.0-159.187-generic 4.4.185
Uname: Linux 4.4.0-159-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
Date: Wed Aug 21 18:57:08 2019
ErrorMessage: end of file on stdin at conffile prompt
InstallationDate: Installed on 2018-10-17 (308 days ago)
InstallationMedia: Ubuntu-Server 16.04.5 LTS "Xenial Xerus" - Release amd64 (20180731)
NtpStatus: ntpq: read: Connection refused
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-4.4.0-159-generic root=UUID=be9ecdfa-71a7-466d-a56a-7369dfd226db ro consoleblank=0
Python3Details: /usr/bin/python3.6, Python 3.6.8, python3-minimal, 3.6.7-1~18.04
PythonDetails: /usr/bin/python2.7, Python 2.7.15+, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2.2
 apt 1.6.11
SourcePackage: ntp
Title: package ntp 1:4.2.8p10+dfsg-5ubuntu7.1 failed to install/upgrade: end of file on stdin at conffile prompt
UpgradeStatus: Upgraded to bionic on 2019-08-21 (0 days ago)
modified.conffile..etc.ntp.conf: [modified]
mtime.conffile..etc.ntp.conf: 2018-10-17T11:14:02.816000