bug#13949: 24.3.50; `fill-paragraph' should not always put the buffer as modified

[Andreas Röhler]

Am 14.03.2013 19:49, schrieb Eli Zaretskii:
> > Date: Thu, 14 Mar 2013 19:34:40 +0100
> > From: Andreas Röhler <andreas.roehler@easy-emacs.de>
> >
> > If fill-paragraph is at stake only, store paragraph in a string at beginning and
> > compare the result should be enough to reset the modify flag if justified.
>
> It is not uncommon to have very large buffers with a single
> paragraph.  What you suggest is hardly memory-efficient.

In this case, after checking the length, writing it to a temp-file might be an 
option.