* doc/emacs/rmail.texi (Rmail Coding): Move here from mule.texi.

doc/emacs/ChangeLog

 2013-07-31  Xue Fuqiao  <xfq.free@gmail.com>
 
+	* rmail.texi (Rmail Coding): Move here from mule.texi.
+
 	* custom.texi (Specifying File Variables): Fix cross-references.
 
 	* mule.texi (Unibyte Mode): Fix cross-references.

doc/emacs/mule.texi

@@ -845,18 +845,6 @@ pattern, are decoded correctly.
 Unlike the previous two, this variable does not override any
 @samp{-*-coding:-*-} tag.
 
-@c FIXME?  This seems somewhat out of place.  Move to the Rmail section?
-@vindex rmail-file-coding-system
-  When you get new mail in Rmail, each message is translated
-automatically from the coding system it is written in, as if it were a
-separate file.  This uses the priority list of coding systems that you
-have specified.  If a MIME message specifies a character set, Rmail
-obeys that specification.  For reading and saving Rmail files
-themselves, Emacs uses the coding system specified by the variable
-@code{rmail-file-coding-system}.  The default value is @code{nil},
-which means that Rmail files are not translated (they are read and
-written in the Emacs internal character code).
-
 @node Specify Coding
 @section Specifying a File's Coding System
 

doc/emacs/rmail.texi

@@ -1274,6 +1274,17 @@ It reads the name of a coding system, and then redecodes the message
 using the coding system you specified.  If you specified the right
 coding system, the result should be readable.
 
+@vindex rmail-file-coding-system
+  When you get new mail in Rmail, each message is translated
+automatically from the coding system it is written in, as if it were a
+separate file.  This uses the priority list of coding systems that you
+have specified.  If a MIME message specifies a character set, Rmail
+obeys that specification.  For reading and saving Rmail files
+themselves, Emacs uses the coding system specified by the variable
+@code{rmail-file-coding-system}.  The default value is @code{nil},
+which means that Rmail files are not translated (they are read and
+written in the Emacs internal character code).
+
 @node Rmail Editing
 @section Editing Within a Message