Improve DESCRIPTION, fix up English usage.

usr.sbin/sti/sti.8

@@ -1,4 +1,4 @@
-.\" $NetBSD: sti.8,v 1.6 2009/08/28 21:19:13 hubertf Exp $
+.\" $NetBSD: sti.8,v 1.7 2012/08/14 08:08:29 dholland Exp $
 .\"
 .\" Copyright (c) 2005 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -27,7 +27,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd November 10, 2005
+.Dd August 14, 2012
 .Dt STI 8
 .Os
 .Sh NAME
@@ -39,20 +39,20 @@
 .Op Ar string ...
 .Sh DESCRIPTION
 .Nm
-will send the provided
-.Ar string
-to the
+connects to the specified
 .Ar tty
-specified in the command line using
+and uses the
+.Dv TIOCSTI
 .Xr ioctl 2
-.Dv TIOCSTI ,
-or send the standard input if no
-.Ar string
-is supplied.
+to enter text as if it were typed in.
 This
 .Xr ioctl 2
 is limited to the superuser.
 .Pp
+.Nm
+will send the provided
+.Ar string
+if any; otherwise it sends the standard input.
 The
 .Ar string
 is interpreted using
@@ -63,7 +63,7 @@ is interpreted using
 .Sh HISTORY
 The
 .Nm
-first appeared at
+command first appeared in
 .Nx 4.0 .
 .Sh AUTHORS
 The