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From: Giorgos Keramidas <keramida@FreeBSD.org>
Date: Wed, 19 Jan 2011 21:35:49 +0000 (UTC)
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Subject: svn commit: r217605 - stable/7/lib/libc/sys
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Author: keramida (doc committer)
Date: Wed Jan 19 21:35:48 2011
New Revision: 217605
URL: http://svn.freebsd.org/changeset/base/217605

Log:
  MFC r199985 from /head
  
  Describe what setpgid(2) does when pgid=0.  The text has been
  copied from NetBSD’s manpage, and it also matches the behavior
  described by the Open Group’s online copy of setpgid.2 at
  http://www.opengroup.org/onlinepubs/009695399/functions/setpgid.html
  
  Obtained from:        NetBSD
  Submitted by:         Petros Barbayiannis <petrosbarbayiannis@yahoo.gr>

Modified:
  stable/7/lib/libc/sys/setpgid.2
Directory Properties:
  stable/7/lib/libc/   (props changed)
  stable/7/lib/libc/stdtime/   (props changed)

Modified: stable/7/lib/libc/sys/setpgid.2
==============================================================================
--- stable/7/lib/libc/sys/setpgid.2	Wed Jan 19 21:35:48 2011	(r217604)
+++ stable/7/lib/libc/sys/setpgid.2	Wed Jan 19 21:35:48 2011	(r217605)
@@ -54,6 +54,11 @@ to the specified
 If
 .Fa pid
 is zero, then the call applies to the current process.
+If
+.Fa pgrp
+is zero, then the process id of the process specified by
+.Fa pid
+is used instead.
 .Pp
 If the affected process is not the invoking process, then it must be a
 child of the invoking process, it must not have performed an