diff --git a/ChangeLog b/ChangeLog
index f4f3f25..c4c558e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2013-02-04  Ben Elliston  <bje@gnu.org>
+
+	* config.guess: Contract the list of copyright years into the
+	range 1992-2013. Remove "(C)" character sequence from copyright
+	statements. Per http://www.gnu.org/licenses/gpl-howto.html.
+	* config.sub: Likewise.
+
 2013-01-23  Sandra Loosemore  <sandra@codesourcery.com>
 
 	* config.sub (nios2eb, nios2el): New.
diff --git a/config.guess b/config.guess
index 0aee604..6ea3454 100755
--- a/config.guess
+++ b/config.guess
@@ -1,10 +1,8 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-#   2011, 2012, 2013 Free Software Foundation, Inc.
+#   Copyright 1992-2013 Free Software Foundation, Inc.
 
-timestamp='2012-12-30'
+timestamp='2013-02-04'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -52,9 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
-2012, 2013 Free Software Foundation, Inc.
+Copyright 1992-2013 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
diff --git a/config.sub b/config.sub
index d1d0994..80211d0 100755
--- a/config.sub
+++ b/config.sub
@@ -1,10 +1,8 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-#   2011, 2012, 2013 Free Software Foundation, Inc.
+#   Copyright 1992-2013 Free Software Foundation, Inc.
 
-timestamp='2013-01-23'
+timestamp='2013-02-04'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -70,9 +68,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
-2012, 2013 Free Software Foundation, Inc.
+Copyright 1992-2013 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."