Spelling fix. Whitespace fixes.

share/man/man4/man4.i386/intro.4

@@ -1,9 +1,9 @@
-.\" $NetBSD: intro.4,v 1.16 2000/07/05 16:13:48 msaitoh Exp $
+.\" $NetBSD: intro.4,v 1.17 2001/04/02 20:41:02 wiz Exp $
 .\"
 .\" Copyright (c) 1997 Jonathan Stone
 .\" Copyright (c) 1994 Christopher G. Demetriou
 .\" All rights reserved.
-.\" 
+.\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
@@ -19,7 +19,7 @@
 .\"          information about NetBSD.
 .\" 4. The name of the author may not be used to endorse or promote products
 .\"    derived from this software without specific prior written permission.
-.\" 
+.\"
 .\" 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.
@@ -30,7 +30,7 @@
 .\" 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.
-.\" 
+.\"
 .\" <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
 .\"
 .Dd
@@ -231,10 +231,10 @@ Ethernet driver for ThunderLAN-based Ethernet adaptor.
 .\"
 .\"
 .Pp
-Serial communcation cards:
+Serial communication cards:
 .Bl -tag -width speaker -offset indent -compact
 .It ast
-multiplexing serial communications card first made by AST. 
+multiplexing serial communications card first made by AST.
 .It boca
 Boca BB100[48] and BB2016 multiplexing serial communications cards.
 NS8250-, NS16450-, and NS16550-based asynchronous serial
@@ -269,7 +269,7 @@ Windows Sound System-compatible sound cards based on the ad1848 chip.
 .\"
 .\"
 .Pp
-Mouse and pointer  devices:
+Mouse and pointer devices:
 .Bl -tag -width speaker -offset indent -compact
 .It joy
 joystick game adaptor