very light updates

hugh@yakkety-laptop:~$ apt show tzdata
Package: tzdata
Version: 2016e-1
Priority: required
Section: libs
Origin: Ubuntu
Maintainer: Ubuntu Developers
Original-Maintainer: GNU Libc Maintainers
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 2,842 kB
Provides: tzdata-stretch
Depends: debconf (>= 0.5) | debconf-2.0
Replaces: libc0.1, libc0.3, libc6, libc6.1
Homepage: http://www.iana.org/time-zones
Task: minimal
Supported: 9m
Download-Size: 170 kB
APT-Manual-Installed: yes
APT-Sources: http://gb.archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
Description: time zone and daylight-saving time data
This package contains data required for the implementation of
standard local time for many representative locations around the
globe. It is updated periodically to reflect changes made by
political bodies to time zone boundaries, UTC offsets, and
daylight-saving rules.