Backport commit 26a308ea1 from Emacs

* lisp/ox-html.el (org-html-infojs-template): Update copyright.

26a308ea112637911fd3870139ba0e2d98e58aa0
Glenn Morris
Wed Jul 5 14:07:14 2017 -0400

lisp/ox-html.el

@@ -518,7 +518,7 @@ means to use the maximum value consistent with other options."
  * @licstart  The following is the entire license notice for the
  *  JavaScript code in %SCRIPT_PATH.
  *
- * Copyright (C) 2012-2013 Free Software Foundation, Inc.
+ * Copyright (C) 2012-2017 Free Software Foundation, Inc.
  *
  *
  * The JavaScript code in this tag is free software: you can
@@ -547,7 +547,7 @@ means to use the maximum value consistent with other options."
 @licstart  The following is the entire license notice for the
 JavaScript code in this tag.
 
-Copyright (C) 2012-2013 Free Software Foundation, Inc.
+Copyright (C) 2012-2017 Free Software Foundation, Inc.
 
 The JavaScript code in this tag is free software: you can
 redistribute it and/or modify it under the terms of the GNU