+#
+# Copyright (c) 1989 The Regents of the University of California.
+# All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Ken Arnold.
+#
+# Redistribution and use in source and binary forms are permitted
+# provided that the above copyright notice and this paragraph are
+# duplicated in all such forms and that any documentation,
+# advertising materials, and other materials related to such
+# distribution and use acknowledge that the software was developed
+# by the University of California, Berkeley. The name of the
+# University may not be used to endorse or promote products derived
+# from this software without specific prior written permission.
+# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+#
+# @(#)Do_troff 5.3 (Berkeley) 9/5/89
+#