[Pkg-emacsen-addons] yasnippet-snippets: license changed to GPL-3, lets harmonise d/* with this

[Alberto Luaces]

Nicholas D Steeves writes:

> Hi Alberto!
>
> I'm just about ready to upload an update to yasnippet-snippets.  Would
> you please clone
>     git at salsa.debian.org:emacsen-team/yasnippet-snippets.git
>
> and take a look at the "Files: debian/*" section of debian/copyright, and
> also commit and push your changes?

Ok, there is no problem at all.  I have pushed my changes.

Regards,

Alberto