Change pseudo-device ptm to pty in synopsis and explain that the

ptm device is include with the pty device.  Bump date.

ok christos

share/man/man4/ptm.4

@@ -1,4 +1,4 @@
-.\"        $NetBSD: ptm.4,v 1.2 2004/12/09 11:20:50 peter Exp $
+.\"        $NetBSD: ptm.4,v 1.3 2004/12/12 22:38:45 peter Exp $
 .\"
 .\" Copyright (c) 2004 Thomas Klausner
 .\" All rights reserved.
@@ -25,14 +25,14 @@
 .\" 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 July 20, 2004
+.Dd December 12, 2004
 .Dt PTM 4
 .Os
 .Sh NAME
 .Nm ptm
 .Nd pseudo-terminal multiplexor device
 .Sh SYNOPSIS
-.Cd "pseudo-device ptm"
+.Cd pseudo-device pty Op Ar count
 .Sh DESCRIPTION
 The
 .Nm
@@ -79,6 +79,14 @@ which is used by
 .Dv TIOCPTSNAME ,
 which is used by
 .Xr ptsname 3 .
+.Pp
+The
+.Nm
+device is included with the pseudo-device
+.Xr pty 4 .
+It can be disabled by adding
+.Dq Cd options NO_DEV_PTM 
+to the kernel configuration.
 .Sh FILES
 .Bl -tag
 .It Pa /dev/ptm