I installed this:
2006-10-12 Paul Eggert <[EMAIL PROTECTED]>
* doc/bison.1: Add copyright notice.
--- doc/bison.1 12 Oct 2006 23:29:52 -0000 1.13
+++ doc/bison.1 13 Oct 2006 04:08:56 -0000
@@ -367,3 +367,9 @@
source distribution.
.SH DIAGNOSTICS
Self explanatory.
+.SH COPYRIGHT
+Copyright \(co 2006 Free Software Foundation, Inc.
+.br
+This is free software. You may redistribute copies of it under the terms of
+the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
+There is NO WARRANTY, to the extent permitted by law.
