Remove default argument from .Nm. Add a missing article. Mention NetBSD import.

usr.sbin/gpioctl/gpioctl.8

@@ -1,4 +1,4 @@
-.\" $NetBSD: gpioctl.8,v 1.1 2005/09/27 02:54:27 jmcneill Exp $
+.\" $NetBSD: gpioctl.8,v 1.2 2005/09/27 09:16:20 wiz Exp $
 .\"	$OpenBSD: gpioctl.8,v 1.5 2004/12/02 05:11:40 grange Exp $
 .\"
 .\" Copyright (c) 2004 Alexander Yurchenko <grange@openbsd.org>
@@ -22,12 +22,12 @@
 .Nm gpioctl
 .Nd control GPIO devices
 .Sh SYNOPSIS
-.Nm gpioctl
+.Nm
 .Op Fl hq
 .Op Fl d Ar device
 .Op Ar pin
 .Op Ar 0 | 1 | 2
-.Nm gpioctl
+.Nm
 .Op Fl hq
 .Op Fl d Ar device
 .Fl c
@@ -63,8 +63,7 @@ If more than one
 .Tn GPIO
 device is present, an alternative device file can be specified with the
 .Fl d
-option
-in order to access a particular
+option in order to access a particular
 .Tn GPIO
 device.
 .Pp
@@ -142,7 +141,7 @@ option causes
 to operate quietly i.e. nothing is printed to stdout.
 The
 .Fl h
-option displays usage summary.
+option displays a usage summary.
 .Sh FILES
 .Bl -tag -width "/dev/gpiou" -compact
 .It /dev/gpio Ns Ar u
@@ -167,7 +166,9 @@ Write logical 1 to pin 20:
 The
 .Nm
 command first appeared in
-.Ox 3.6 .
+.Ox 3.6
+and
+.Nx 4.0 .
 .Sh AUTHORS
 The
 .Nm