bug#6332: Colors lost from list-colors-display

[Stefan Monnier]

> I found another problem in `list-colors-display':
> on a wide frame it uses a wrong value of `window-width'
> because `list-colors-print' generates the color list
> before it's displayed that might split the frame horizontally.

A common problem.

> The following patch fixes this problem by displaying the output buffer
> before generating its content (that is very fast thus there is no delay
> and no bad visual effects):

Thanks, that's a good change.


        Stefan