Bug#807461: lintian: check years in debian/copyright are not in the future

[Jakub Wilk <jwilk@debian.org>]

* Paul Wise <pabs@debian.org>, 2015-12-09, 11:45:
> I found a git commit in one of the d-i packages that fixed the 
> copyright year, changing it from 2103 to 2013. This wasn't in 
> debian/copyright but it would be great if lintian could catch such 
> typos in debian/copyright.

Heh, I found these:

https://sources.debian.net/src/jenkins-debian-glue/0.15.2/debian/copyright/?hl=19
https://sources.debian.net/src/ocaml-frei0r/0.1.0-3/debian/copyright/?hl=8

--
Jakub Wilk