Comment 9 for bug 1599646

Verified on unattended-upgrades/1.5ubuntu3.18.10.2 for Cosmic:

https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-cosmic/cosmic/amd64/u/unattended-upgrades/20190221_173137_1ecf7@/log.gz :
...
From root@autopkgtest Thu Feb 21 17:09:54 2019
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Subject: [package on hold] unattended-upgrades result for adt-cosmic-amd64-unattended-upgrades-20190221-165334.novalocal: SUCCESS
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Date: Thu, 21 Feb 2019 17:09:54 +0000

Unattended upgrade result: All upgrades installed

Packages that were upgraded:
 apt apt-utils dirmngr distro-info-data gnupg gnupg-l10n gnupg-utils
 gpg gpg-agent gpg-wks-client gpg-wks-server gpgconf gpgsm gpgv gvfs
 gvfs-common gvfs-daemons gvfs-libs initramfs-tools
 initramfs-tools-bin initramfs-tools-core krb5-locales libapt-inst2.0
 libapt-pkg5.0 libavahi-client3 libavahi-common-data libavahi-common3
 libavahi-glib1 libcaca0 libcups2 libgssapi-krb5-2
 libjavascriptcoregtk-4.0-18 libk5crypto3 libkrb5-3 libkrb5support0
 libmysqlclient20 libnss-systemd libnss3 libpam-systemd libperl5.26
 libpolkit-agent-1-0 libpolkit-backend-1-0 libpolkit-gobject-1-0
 libpoppler-glib8 libpoppler79 libssl1.0.0 libssl1.1 libsystemd0
 libtiff5 libudev1 libwavpack1 libwebkit2gtk-4.0-37 openssh-client
 openssl perl perl-base perl-modules-5.26 policykit-1
 python3-requests snapd systemd systemd-sysv tzdata udev
 xserver-common xserver-xorg-core xserver-xorg-legacy
Packages with upgradable origin but kept back:
 libpython3.6-minimal libpython3.6-stdlib python3.6 python3.6-minimal

Packages that were auto-removed:
 libncursesw5 libtinfo5

Package installation log:
Log started: 2019-02-21 17:08:07
Preparing to unpack .../distro-info-data_0.38ubuntu0.1_all.deb ...
Unpacking distro-info-data (0.38ubuntu0.1) over (0.38) ...
Setting up distro-info-data (0.38ubuntu0.1) ...
Log ended: 2019-02-21 17:08:09
...