1 files changed, 43 insertions, 3 deletions

diff --git a/share/doc/usd/21.troff/m0 b/share/doc/usd/21.troff/m0
index 037ce8f942d3..d91c08f6313a 100644
--- a/share/doc/usd/21.troff/m0
+++ b/share/doc/usd/21.troff/m0
@@ -1,6 +1,39 @@
-.\" This module is believed to contain source code proprietary to AT&T.
-.\" Use and redistribution is subject to the Berkeley Software License
-.\" Agreement and your Software Agreement with AT&T (Western Electric).
+.\" Hey, Emacs, edit this file in -*- nroff-fill -*- mode!
+.\" Copyright (C) Caldera International Inc. 2001-2002.  All rights reserved.
+.\" 
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions are
+.\" met:
+.\" 
+.\" Redistributions of source code and documentation must retain the above
+.\" copyright notice, this list of conditions and the following
+.\" disclaimer.
+.\" 
+.\" Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 
+.\" All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" 
+.\" This product includes software developed or owned by Caldera
+.\" International, Inc.  Neither the name of Caldera International, Inc.
+.\" nor the names of other contributors may be used to endorse or promote
+.\" products derived from this software without specific prior written
+.\" permission.
+.\" 
+.\" USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
+.\" INTERNATIONAL, INC.  AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+.\" DISCLAIMED.  IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+.\" OR OTHERWISE) RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
 .\"	@(#)m0	8.1 (Berkeley) 8/14/93
 .\"
@@ -26,6 +59,13 @@ Murray Hill, New Jersey 07974
 .ps \n(PS
 .fi
 .ft B
+.ps +1
+NOTE: This document in its current form describes the \fItroff\fP\| program
+supplied with 4.4BSD.  The \fIgroff\fP\| program supplied with FreeBSD has a
+number of additional features and a couple of small incompatibilities.  See
+\fIgroff(1)\fP\| for more details.
+.ps
+.sp 1
 Introduction
 .pg
 \*(NR and \*(TR are text processors under