* tramp.texi (Filename Syntax): Filenames must be unibyte strings.

doc/misc/ChangeLog

+2013-01-24  Michael Albinus  <michael.albinus@gmx.de>
+
+	* tramp.texi (Filename Syntax): Filenames must be unibyte strings.
+
 2013-01-13  Bastien Guerry  <bzg@gnu.org>
 
 	* org.texi (Installation): Simplify.

doc/misc/tramp.texi

@@ -2362,6 +2362,8 @@ number than the default one, given by the method.  This is specified
 by adding @file{#<port>} to the host name, like in @file{@trampfn{ssh,
 daniel, melancholia#42, .emacs}}.
 
+Note that @value{tramp} supports only filenames encoded in unibyte.
+
 
 @node Alternative Syntax
 @section URL-like filename syntax