[tz] trailing whitespace in IERS leap-seconds.list file

[Paul Eggert]

On 2024-01-10 01:01, Martin Burnicki wrote:
> 
> A proper solution would probably be to re-run the script to create a new 
> file, without trailing space, but with consistent "last update" time 
> stamp and file name ending, and file time.

Yes, that's what I was hinting at, though I didn't say so explicitly.

Ideally the HTTP Last-Modified: timestamp for leap-seconds.list would be 
identical to the file's internal "last update" time, and would specify 
the preferred timezone for the timestamp. Presumably the IERS script 
that generates leap-seconds.list could use the POSIX "touch" command to 
set the file's timestamp appropriately.

Currently, TZDB is using the HTTP Last-Modified: timestamp but with the 
Europe/Paris timezone, as that seems to best reflect how the file is 
actually maintained. This approach could easily be changed if we get 
better info about file maintenance, or if the file maintenance procedure 
changes.

TZDB is also using the file's "Questions or comments to:" section to 
construct the author name and email address for committing changes to 
leap-seconds.list.