bug#45536: [PATCH] Pretty-print keys without <> around modifiers

[Drew Adams]

> > Oh, right.  Well, if the manual displays these keys as M-<foo> etc, then
> > I withdraw all my objections based on possible confusion -- this change
> > would make things less confusing.  So I'm leaning towards applying the
> > change and then see whether this breaks anything for anybody.
> 
> Good, here is the elaborated patch, complete with NEWS entry, a few doc
> fixes, and tests.

FWIW, I think the manuals and Emacs help (`*Help*')
should use the same syntax.  What you see when you
ask Emacs for help interactively should be what
you see when you access the manuals.  And that same
syntax should be what `kbd' accepts as input.