10l to me. I accidentally removed a word.

Originally committed as revision 9677 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/ac3dec.c

@@ -14,7 +14,7 @@
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
- * modify it the terms of the GNU General Public
+ * 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.
  *