Remove 'or any later version' license choice

Recent drama about FSF leadership continuity makes this less clearly
desirable.

My intention is to add future license versions to this list after
verifying that they are of similar character and spirit to past
versions.

Previous versions of this software, of course, retain the 'or any later
version' license choice option.

diff --git a/extension.js b/extension.js
index f2ea28fafb36ee44a2965d5c22bf83fcfd6e326c..c7a5b53dabb5eeb4d3f31298ba3d425b354f27cc 100644 (file)
--- a/extension.js
+++ b/extension.js
@@ -4,7 +4,7 @@
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
+ * or version 3 of the License (at your option).
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of