[src/trunk]: src/lib/libc/sys Fix synopsis, remove unneeded Pp macro before d...

[njoly <njoly%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/0870193c5221
branches:  trunk
changeset: 332552:0870193c5221
user:      njoly <njoly%NetBSD.org@localhost>
date:      Sat Sep 27 12:11:13 2014 +0000

description:
Fix synopsis, remove unneeded Pp macro before display block and add one
before prototype. While here, use "Rv -std" for RETURN VALUES.

diffstat:

 lib/libc/sys/sigaltstack.2 |  9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)

diffs (37 lines):

diff -r 434781f35d58 -r 0870193c5221 lib/libc/sys/sigaltstack.2
--- a/lib/libc/sys/sigaltstack.2        Sat Sep 27 12:08:46 2014 +0000
+++ b/lib/libc/sys/sigaltstack.2        Sat Sep 27 12:11:13 2014 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: sigaltstack.2,v 1.23 2012/03/02 18:07:17 joerg Exp $
+.\"    $NetBSD: sigaltstack.2,v 1.24 2014/09/27 12:11:13 njoly Exp $
 .\"
 .\" Copyright (c) 1983, 1991, 1992, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -39,7 +39,6 @@
 .Lb libc
 .Sh SYNOPSIS
 .In signal.h
-.Pp
 .Bd -literal
 typedef struct sigaltstack {
        void   *ss_sp;
@@ -47,6 +46,7 @@
        int     ss_flags;
 } stack_t;
 .Ed
+.Pp
 .Ft int
 .Fn sigaltstack "const stack_t * restrict ss" "stack_t * restrict oss"
 .Sh DESCRIPTION
@@ -132,10 +132,7 @@
 If the stack overflows and this space is not protected
 unpredictable results may occur.
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.
-Otherwise, a value of \-1 is returned and
-.Va errno
-is set to indicate the error.
+.Rv -std
 .Sh ERRORS
 .Fn sigaltstack
 will fail and the signal stack context will remain unchanged