[PATCH]: update leapseconds

[Gianni Tedesco]

On Sun, 2018-03-18 at 16:59 -0700, Paul Eggert wrote:
> As I understand it, the leapseconds file (like most of the other
> files in the 
> glibc timezone directory) is intended only for test data, and is not
> kept 
> up-to-date. Perhaps this should be stated more clearly in the files'
> headers.
> 
> Another possibility would be to remove these files, as purposely out-
> of-date 
> files cause confusion among glibc contributors.

Ah, I was under the impression they were used when converting in and
out of "right" timezones. But now I see that information is in the
tzinfo file itself.

My bad.

Gianni