Changed SYNOPSIS, include <sys/types.h> before <unistd.h>

lib/libc/sys/getpid.2

@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)getpid.2	6.4 (Berkeley) 3/10/91
-.\"	$Id: getpid.2,v 1.2 1993/08/01 07:42:56 mycroft Exp $
+.\"	$Id: getpid.2,v 1.3 1993/10/04 18:34:15 jtc Exp $
 .\"
 .Dd March 10, 1991
 .Dt GETPID 2
@@ -40,6 +40,7 @@
 .Nm getppid
 .Nd get parent or calling process identification
 .Sh SYNOPSIS
+.Fd #include <sys/types.h>
 .Fd #include <unistd.h>
 .Ft pid_t
 .Fn getpid void