The “binary-friendly” Latin-1

[Ludovic Courtès]

Hello!

Do we really want to keep:

  1. The notion of a “binary-friendly” ISO-8859-1 encoding?  It’s
     actually mostly gone with the iconv change, since every textual
     access goes through iconv.  For binary accesses, the right API is
     (rnrs io ports) or similar.

  2. The #f <=> "ISO-8859-1" equivalence for ‘port-encoding’ and
     ‘set-port-encoding!’.  Likewise, commit
     d9544bf012b6e343c80b76bd5761b1583cc106a3 makes ‘port-encoding’
     always return a string and pt->encoding always be non-NULL.

Sorry for questioning this now, but these are important questions, I
think.

Thanks,
Ludo’.