--- a/scripts/plot/Makefile.in
+++ b/scripts/plot/Makefile.in
@@ -1,10 +1,20 @@
-#
 # Makefile for octave's scripts/plot directory
 #
-# John W. Eaton
-# jwe@bevo.che.wisc.edu
-# University of Wisconsin-Madison
-# Department of Chemical Engineering
+# This file is part of Octave.
+# 
+# Octave 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 3 of the License, or (at
+# your option) any later version.
+# 
+# Octave is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with Octave; see the file COPYING.  If not, see
+# <http://www.gnu.org/licenses/>.
 
 TOPDIR = ../..