move mksuncd to here (but still only sparc64 build)

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diff --git a/usr.sbin/mksuncd/mksuncd.1 b/usr.sbin/mksuncd/mksuncd.1
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+.\"	$OpenBSD: mksuncd.1,v 1.1 2008/08/22 15:48:32 deraadt Exp $
+.\"
+.\" Copyright (c) 2001 Jason L. Wright (jason@thought.net)
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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) ARISING IN
+.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: August 22 2008 $
+.Dt MKSUNCD 1
+.Os
+.Sh NAME
+.Nm mksuncd
+.Nd add a bootable ufs partition to a filesystem image
+.Sh SYNOPSIS
+.Nm mksuncd
+.Ar partition-letter
+.Ar imagefile
+.Ar ufsfile
+.Sh DESCRIPTION
+The
+.Nm
+utility adds the file
+.Ar ufsfile
+to the end of
+.Ar imagefile .
+.Ar ufsfile
+is assumed to be a bootable filesystem image and
+.Ar imagefile
+is assumed to be something like an ISO 9660 filesystem.
+A Sun-style disklabel is expected to already be present
+at the beginning of
+.Ar imagefile ,
+and
+.Nm
+will update that label so that the partition (a-h) given by
+.Ar partition-letter
+points to
+.Ar ufsfile
+within
+.Ar imagefile .
+.Pp
+Based on the label in
+.Ar imagefile ,
+that file is padded so that added files are always on cylinder boundaries.
+This is a requirement of the PROM.
+.Sh BUGS
+This program is not endian or type safe.
+It makes several assumptions about both based on its
+SPARC bias.