Bug#386385: xkb-data: Wrong codes for Greek polytonic breathing signs

[Drew Parsons <dparsons@debian.org>]

> > If this roadmap makes sense to you, can you please file bug
> > reports with patches against libx11-data for steps 1 and 2?
> > This is much easier to perform by people reading Greek ;-)
> 
> I am neither a Greek, nor a real expert in Ancient Greek, so I
> want to be very careful. I am just interested in making the
> 'breathing signs' accessible to *international* users (using a
> non-Greek UTF-8 locale).

I think it would be helpful to have a test case to confirm the wrong
behaviour and to verify the fix.  Is a url available?

Drew