Last update to tzcode was 2015g?

[Paul Eggert]

On 03/10/2016 01:32 PM, Joseph Myers wrote:
> For tzdata: it's not routinely merged from upstream at all since it's only
> present as test inputs, and the wiki should emphasise that.

The data files (currently listed "Unknown") came from the 2009i release.

Also, the file 'yearistype' in glibc is called 'yearistype.sh' in the 
2009i release.

> For tzcode: as timezone/README says, check ChangeLog for the version
> merged from.  There is a complication: checktab.awk originally came from
> tzcode, but now is part of tzdata instead (since 2014g).  As far as I can
> see it's not used in glibc, so could actually be deleted.

I don't offhand know which tz version checktab.awk came from, but it 
wasn't 2015g. Deleting it would save us the effort of tracking down the 
tz version.

Might help to sort the wiki tables by file name.