Add/fix copyright notices and adjust to latest GNU FDL.

tests/expr/basic

@@ -1,5 +1,24 @@
 #!/bin/sh
 # -*-perl-*-
+# Basic tests for "expr".
+
+# Copyright (C) 2001, 2003, 2004, 2005, 2006 Free Software Foundation,
+# Inc.
+
+# 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.
+
+# This program 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 this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
 
 : ${PERL=perl}
 : ${srcdir=.}