[cairo] Clip documentation and behaviour

[Maximilian Heinzler]

On So, Jun 11, 2017 at 20:12:41, Guillermo Rodriguez wrote:
> Why "obviously"? If you call cairo_clip twice with different paths,
> the clip region should either get smaller or remain unchanged.

I'm so sorry. You are absolutely right, and there is nothing wrong
with cairo_clip(). I was so focused on this that I completely
misinterpreted the results of my tests.

Please forget about the first question :).