bug#15747: Patch to optionally display raw bytes in hexadecimal

[Eli Zaretskii]

> From: Nathan Trapuzzano <nbtrap@nbtrap.com>
> Cc: Eli Zaretskii <eliz@gnu.org>,  15747@debbugs.gnu.org
> Date: Wed, 30 Oct 2013 06:33:46 -0400
> 
> Stefan Monnier <monnier@iro.umontreal.ca> writes:
> 
> >> I thought about \d123.
> >
> > Of course, but that's even longer than octal.  But I guess it's good enough.
> 
> And left pad it with zeros I assume?

Probably.

> Also, what do you guys think of making it buffer-local?

Definitely, IMO.