Refer to timeval(3) and only describe the legacy struct timezone here.

Improve markup.

lib/libc/sys/gettimeofday.2

@@ -1,4 +1,4 @@
-.\"	$NetBSD: gettimeofday.2,v 1.26 2009/01/16 10:52:07 drochner Exp $
+.\"	$NetBSD: gettimeofday.2,v 1.27 2010/05/18 07:14:18 jruoho Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"     @(#)gettimeofday.2	8.2 (Berkeley) 5/26/95
 .\"
-.Dd January 16, 2009
+.Dd May 18, 2010
 .Dt GETTIMEOFDAY 2
 .Os
 .Sh NAME
@@ -60,7 +60,9 @@ call.
 The time is expressed in seconds and microseconds
 since midnight (0 hour), January 1, 1970.
 The resolution of the system clock is hardware dependent,
-and the time may be updated continuously or in ``ticks.''
+and the time may be updated continuously or in
+.Dq ticks .
+.Pp
 If
 .Fa tp
 is NULL, the time will not be returned or set.
@@ -76,15 +78,11 @@ The structures pointed to by
 and
 .Fa tzp
 are defined in
-.Ao Pa sys/time.h Ac
-as:
-.Pp
-.Bd -literal
-struct timeval {
-	time_t		tv_sec;		/* seconds since Jan. 1, 1970 */
-	suseconds_t	tv_usec;	/* and microseconds */
-};
-
+.In sys/time.h .
+The first one is described in
+.Xr timeval 3
+and the latter legacy structure is defined as:
+.Bd -literal -offset indent
 struct timezone {
 	int	tz_minuteswest; /* of Greenwich */
 	int	tz_dsttime;	/* type of dst correction to apply */
@@ -123,8 +121,8 @@ system call, which is restricted to the super user.
 .\" .Xr adjtime 2
 .\" system call even when the system is secure.
 .Sh RETURN VALUES
-A 0 return value indicates that the call succeeded.
-A \-1 return value indicates an error occurred, and in this
+A return value 0 indicates that the call succeeded.
+A return value \-1 indicates an error occurred, and in this
 case an error code is stored into the global variable
 .Va errno .
 .Sh ERRORS