Add right-char and left-char to Follow Mode cached commands.

 lisp/follow.el (follow-cache-command-list): Include right-char and
 left-char.

lisp/ChangeLog

+2014-01-10  Anders Lindgren  <andlind@gmail.com>
+
+	* follow.el (follow-cache-command-list): Include right-char and
+	left-char.
+
 2014-01-10  Paul Eggert  <eggert@cs.ucla.edu>
 
 	Spelling fixes.

lisp/follow.el

@@ -311,7 +311,7 @@ are \" Fw\", or simply \"\"."
 	 (set-default symbol value)))
 
 (defvar follow-cache-command-list
-  '(next-line previous-line forward-char backward-char)
+  '(next-line previous-line forward-char backward-char right-char left-char)
   "List of commands that don't require recalculation.
 
 In order to be able to use the cache, a command should not change the