bug#1183: 23.0.60; ediff-buffers is broken

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: kifer@cs.sunysb.edu,  handa@m17n.org,  drew.adams@oracle.com,  
> 1183@emacsbugs.donarmstrong.com,  bug-gnu-emacs@gnu.org,  
> kifer@cs.stonybrook.edu
> Date: Sat, 18 Oct 2008 22:17:06 -0400
> 
> > The problem with that is that ediff-exec-process then uses raw-text to
> > read the output from Diff back into Emacs.
> 
> Yes, raw-text is wrong.  It should probably use undecided at least, or
> otherwise try to be more clever and use the encoding used by the
> source files.

There are 2 files involved in this, and each one can be in a different
encoding.  Thus, undecided is also not quite correct, since it will at
best most probably pick up at random one of the 2 encodings.