[O] [BUG] ox-info: incorrect @documentencoding

[Suvayu Ali]

Hi,

For the Texinfo exporter, I noticed that the @documentencoding macro is
derived from the buffer-file-coding-system.  At the moment it is
translated like this: us-ascii-unix to US-ASCII-UNIX.  This makes
makeinfo complain like so:

org-syntax.texi:5: warning: encoding `US-ASCII-UNIX' is not a canonical texinfo 
encoding
org-syntax.texi:5: warning: unrecognized encoding name `US-ASCII-UNIX'

If I manually choose us-ascii as my coding system, Emacs sets it to
us-ascii-unix.  I'm guessing us-ascii is an alias of somekind for
us-ascii-<platform>.

Hand editing the US-ASCII-UNIX to US-ASCII in the exported file gets rid
of the warning.

Hope this helps,

-- 
Suvayu

Open source is the future. It sets us free.