bug#16828: 24.3.50; eval-expression, character representation of integer results time-consuming

[Eli Zaretskii]

> From: npostavs@users.sourceforge.net
> Cc: 16828@debbugs.gnu.org
> Date: Sun, 26 Mar 2017 13:39:52 -0400
> 
> > What about a special value of prefix argument, like zero?  If that's
> > OK, it's more convenient than any of the above.
> 
> Sure, it's just a matter of deciding how to fit this in with the
> existing interpretation of the prefix argument.  Right now, a non-nil
> prefix argument means to insert the result into the buffer.

Yes, I propose that the current behavior wrt the argument will be left
unchanged, except when the argument is zero, i.e. "C-u 0".