bug#18416: EMACS_HEAPSIZE unexpanded (unused?)

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Date: Fri, 05 Sep 2014 18:44:13 -0400
> 
> Package: emacs
> Version: 24.4.50
> Severity: minor
> 
> Current trunk on GNU/Linux, the generated src/Makefile contains an
> unexpanded @EMACS_HEAPSIZE@. It's not used for anything, so it doesn't
> really matter, but it seems like bad form. It would be better for it to
> expand to the empty string, like it does in the emacs-24 branch.
> Or perhaps it is now entirely unused and should just be removed?
> 
> BTW, there's no ChangeLog entry that says when EMACS_HEAPSIZE was
> removed from configure.ac.
> 
> It seems it was
> http://lists.gnu.org/archive/html/emacs-diffs/2014-05/msg00255.html
> 
> The ChangeLog entry should be improved.

Fixed.