bug#4118: 23.1; eval-last-sexp-print-value is inconvenient

[Juri Linkov <juri@jurta.org>]

>   A prefix of
>     1 (or just C-u) -> output a plain number into the buffer
>     2 -> number + alternative radix outputs into the buffer
>     3 -> number + alternates + character into the buffer
>     -1, -2, -3 -> same as above, but for the echo area
>   And the above always behaves the same.
>
>   *No* prefix means:
>     show the plain number output in the echo area on first use
>     number + alternates on second use (with no prefix, of course)
>     number + alternates + character on the third use.

Then maybe the same scheme should be applied to `eval-expression'
(`M-:') as well.

-- 
Juri Linkov
http://www.jurta.org/emacs/