Use more markup. From YOMURA Masanori in private mail.

While here: new sentence, new line; |fmt; s/.br/.Pp/

usr.bin/fmt/fmt.1

@@ -1,4 +1,4 @@
-.\"	$NetBSD: fmt.1,v 1.8 2003/08/07 11:13:47 agc Exp $
+.\"	$NetBSD: fmt.1,v 1.9 2005/09/11 23:15:20 wiz Exp $
 .\"
 .\" Copyright (c) 1980, 1990, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -49,13 +49,15 @@ is a simple text formatter which reads the concatenation of input
 files (or standard input if none are given) and produces on standard
 output a version of its input with lines as close to the
 .Ar goal
-length
-as possible without exceeding the maximum.  The
+length as possible without exceeding the
+.Ar maximum .
+The
 .Ar goal
-length defaults
-to 65 and the maximum to 75.  The spacing at the beginning of the
-input lines is preserved in the output, as are blank lines and
-interword spacing.
+length defaults to 65 and the
+.Ar maximum
+to 75.
+The spacing at the beginning of the input lines is preserved in
+the output, as are blank lines and interword spacing.
 .Pp
 .Fl C
 instructs
@@ -65,17 +67,15 @@ to center the text.
 .Nm
 is meant to format mail messages prior to sending, but may also be useful
 for other simple tasks.
-For instance,
-within visual mode of the
+For instance, within visual mode of the
 .Xr ex 1
-editor (e.g.
+editor (e.g.,
 .Xr vi 1 )
 the command
 .Pp
 .Dl \&!}fmt
 .Pp
-will reformat a paragraph,
-evening the lines.
+will reformat a paragraph, evening the lines.
 .Sh SEE ALSO
 .Xr mail 1 ,
 .Xr nroff 1
@@ -86,8 +86,9 @@ command appeared in
 .Bx 3 .
 .\" .Sh AUTHORS
 .\" Kurt Shoens
-.\" .br
+.\" .Pp
 .\" Liz Allen (added goal length concept)
 .Sh BUGS
 The program was designed to be simple and fast \- for more complex
-operations, the standard text processors are likely to be more appropriate.
+operations, the standard text processors are likely to be more
+appropriate.