bug#3395: 23.0.94; Remove colon after option etc. name

[martin rudalics]

> I don't use `variable-at-point'. I do use a command that uses Emacs-Lisp 
symbol
> syntax, which is the right syntax to use here.

So you request a change of cus-edit.el just because you're not able to
write a command that DTRT here ;-)

>> Commands that do not change the syntax table do get this right.  Try,
>> for example, info-lookup on such an item.  It should even work for
>> unlispified items.
>
> That's fine, but it is totally unrelated to what I reported and requested.

It is related because it can find things you're not able to find.

> This is not about changing the command. It is simply about removing the 
useless
> colon. Is that too hard?

It might be.

>> Changing customization code is 100% dangerous.
>
> Don't be ridiculous. You are making, in several separate ways, a mountain out 
of
> a mole hill.

Hence code like

             (unless (string-match ":" format)
               (error "Bad format"))

in cus-edit.el is something you understand and can explain.

martin