[tz] Duplicate Links

[Paul Eggert]

Daniel Schultze wrote:
> While working on a project related to timezone conversion I found that
> there are a couple of Links that have multiple mappings. I found the
> problem in tzdata2015f. I have attatched a patch to the checklinks.awk file
> which lists links with more than one mapping.

Thanks, I tried that patch, but "make check_links" did not report any problems. 
  What problems did you observe?