* doc/emacs/custom.texi (Changing a Variable): Fix typo.

doc/emacs/ChangeLog

+2013-05-07  Glenn Morris  <rgm@gnu.org>
+
+	* custom.texi (Changing a Variable): Fix typo.
+
 2013-05-06  Glenn Morris  <rgm@gnu.org>
 
 	* trouble.texi (Contributing): Remove obsolete info re pretesters.

doc/emacs/custom.texi

@@ -345,7 +345,7 @@ hidden, nor on subgroups that are hidden or not visible in the buffer.
 @kindex C-x C-c @r{(customization buffer)}
 @findex Custom-set
 @findex Custom-save
-  The command @kbd{C-c C-c} (@code{Custom-set}) is equivalent using to
+  The command @kbd{C-c C-c} (@code{Custom-set}) is equivalent to using
 the @samp{[Set for Current Session]} button.  The command @kbd{C-x
 C-s} (@code{Custom-save}) is like using the @samp{[Save for Future
 Sessions]} button.