Update copyright dates

I've had this patch in my tree since Jan 1, and it appears didn't
post it..  OK to apply?  I'll also fix the copyright date at the end
of the ChangeLog file too.

	* utils.scm: Update emitted copyright dates.

Index: utils.scm
===================================================================
RCS file: /cvs/src/src/cgen/utils.scm,v
retrieving revision 1.39
diff -u -p -r1.39 utils.scm
--- utils.scm	22 Apr 2016 02:03:49 -0000	1.39
+++ utils.scm	7 Apr 2017 10:15:20 -0000
@@ -1310,7 +1310,7 @@
   (cons "\
 THIS FILE IS MACHINE GENERATED WITH CGEN.
 
-Copyright (C) 1996-2016 Free Software Foundation, Inc.
+Copyright (C) 1996-2017 Free Software Foundation, Inc.
 "
 	"\
    This file is free software; you can redistribute it and/or modify
@@ -1335,7 +1335,7 @@ Copyright (C) 1996-2016 Free Software Fo
   (cons "\
 THIS FILE IS MACHINE GENERATED WITH CGEN.
 
-Copyright (C) 2000-2016 Red Hat, Inc.
+Copyright (C) 2000-2017 Red Hat, Inc.
 "
 	"\
 "))

-- 
Alan Modra
Australia Development Lab, IBM