Fix GPL version at 2

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/ao_adc.c b/ao_adc.c
index 8834f26e..9cd3d46c 100644
--- a/ao_adc.c
+++ b/ao_adc.c
@@ -3,8 +3,7 @@
  *
  * 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.
+ * the Free Software Foundation; version 2 of the License.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of