Upgrade to gnutls 3.6.x breaks Lynx's ability to view a large number of ssl enabled sites.

[Aaron Howell]

After the upgrade to gnutls 3.6.4 which has just been added to cosmic, lynx becomes unable to view many ssl enabled sites, for example trying to go to https://cyberciti.biz fails with "Alert: unexpected network read error, connection aborted". There is nothing special about this particular site, its just one I happened to be trying to access at the time I uncovered this issue, and for affected sites, its 100% reproduceable. Downgrading back to gnutls 3.5.19 fixes the issue.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: lynx 2.8.9rel.1-2
ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
Uname: Linux 4.18.0-10-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
Date: Mon Oct 15 08:16:11 2018
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SourcePackage: lynx
UpgradeStatus: No upgrade log present (probably fresh install)

[Andreas Metzler (k-launchpad-downhill-at-eu-org)]

Looks like a duplicate of https://bugs.debian.org/918934