bug#21874: 25.0.50; point-entered no longer works

[Stefan Monnier]

>     (setq minibuffer-prompt-properties '((read-only t)
>                                          (cursor-intangible t)
>                                          (face minibuffer-prompt)))
>
> The user then needs to add just one line to their config if they want to
> make the minibuffer prompts untouchable.

I kind of find it a poor choice, since it sets a property which just
happens to be unused.

>     (add-hook 'minibuffer-setup-hook #'cursor-intangible-mode)

A user might do this for other reasons and might find the
side-effect unexpected.

Note that setting minibuffer-prompt-properties via Custom will
automatically do this `add-hook' when needed.


        Stefan