bug#16424: 24.3.50; y-or-n-p prompt no more visible in minibuffer

[martin rudalics]

> To reproduce in emacs -Q, eval the following code in scratch:
>
> --8<---------------cut here---------------start------------->8---
> (let ((files '("foo" "bar" "baz" "ert"
>                "rty" "yui" "riri" "fifi"
>                "lolo" "ppom" "mlk" "bgt"
>                "gfr" "sdf" "ghj" "vcx" "qsd")))
>   (y-or-n-p
>    (format "Delete *%s File(s):\n%s"
>            (length files)
>            (mapconcat (lambda (f) (format "- %s\n" f)) files ""))))
> --8<---------------cut here---------------end--------------->8---
>
> You can see the (y-or-n) is no more visible.

Should be fixed now.  Please try again.

martin