[aur-general] Licenses, GPL3 only

[Xyne]

Philipp Überbacher wrote:

> It would be nice to distinguish between GPLvN only and GPLvN or later
> for any N. The question is which way is optimal.

GPL2
GPL2-only
GPL3
GPL3-only
etc

Wouldn't that both be clear and avoid sweeping changes as most things are
licensed under the standard "this version or later" license?

Also, if it's a pita to change now, it will only be a bigger pita later when it
becomes an actual problem.