RE: New global bindings

[Drew Adams]

> > I have some problems with the new global bindings for C--, 
> > C-=, and C-+: 1- they're not mentioned in etc/NEWS (it
> >     seems none of the face-remap feature is mentioned there).
> > 2- (control -) was used for negative prefix arguments, so this is
> >     a significant change for oldtimers.
> > 3- these are very short key-bindings for a feature that 
> >     does not seem to require them: you're unlikely to want to do
> >     it that frequently.
> > 
> > Point nb 1 is easy to fix, maybe I can live with nb 3, but 
> > nb 2 seems to be more problematic.  So I think we need to
> > find some other key-bindings for that.  I think a prefix key
> > followed by +, -, and = (repeatable like C-x e e e e e, maybe
> > even allowing switching between + and -) is the best choice.
> 
> As a user, I agree very much with this sentiment.  Very few 
> editors even support C-+/C-- zooming; that's generally a viewer
> binding. I would be happy with C-x C-+/C-x C-- bindings.

I agree, and I already said the same thing.

There is no need to co-opt such short keys, especially a key (`C--') that is
already bound and very useful. Please use a repeatable prefix key, as suggested,
if you make any key bindings at all for this.

Please do one of the following:

1. Don't bind any keys in this library. Include binding
   suggestions in the Commentary, if you like.
2. Bind keys only in a minor-mode map.