network manager connection icon does not show lock when vpn connected

[largeprime]

see https://bugzilla.gnome.org/show_bug.cgi?id=790062

I do not think this is relevant but for completeness

https://bugs.launchpad.net/bugs/772709

thanks to #lubuntu and tsimonq2

1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu
lsb_release -rd
Description: Ubuntu 17.10
Release: 17.10

2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center
see gnome bug link

3) What you expected to happen
see gnome bug link

4) What happened instead
see gnome bug link

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: lubuntu-artwork 0.69
ProcVersionSignature: Ubuntu 4.13.0-17.20-generic 4.13.8
Uname: Linux 4.13.0-17-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.4
Architecture: amd64
CurrentDesktop: LXDE
Date: Mon Nov 20 11:49:33 2017
InstallationDate: Installed on 2016-04-16 (583 days ago)
InstallationMedia: Lubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
PackageArchitecture: all
SourcePackage: lubuntu-artwork
UpgradeStatus: Upgraded to artful on 2017-10-24 (26 days ago)