sync with OpenBSD -current

lib/libc/sys/getrusage.2

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: getrusage.2,v 1.17 2015/02/28 21:51:57 bentley Exp $
+.\"	$OpenBSD: getrusage.2,v 1.18 2024/07/17 13:29:05 claudio Exp $
 .\"
 .\" Copyright (c) 1985, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"     @(#)getrusage.2	8.1 (Berkeley) 6/4/93
 .\"
-.Dd $Mdocdate: February 28 2015 $
+.Dd $Mdocdate: July 17 2024 $
 .Dt GETRUSAGE 2
 .Os
 .Sh NAME
@@ -48,7 +48,10 @@ which can be one of the following:
 .It Dv RUSAGE_SELF
 Resources used by the current process.
 .It Dv RUSAGE_CHILDREN
-Resources used by all the terminated children of the current process.
+Resources used by all the terminated children of the current process which
+were waited upon.
+If the child is never waited for, the resource information for the child
+process is discarded.
 .It Dv RUSAGE_THREAD
 Resources used by the current thread.
 .El
@@ -186,4 +189,4 @@ flag has been available since
 .Ox 4.8 .
 .Sh BUGS
 There is no way to obtain information about a child process
-that has not yet terminated.
+that has not yet terminated or has not been waited for by the parent.

lib/libc/sys/link.2

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: link.2,v 1.30 2024/03/25 17:57:07 guenther Exp $
+.\"	$OpenBSD: link.2,v 1.31 2024/07/18 15:38:57 millert Exp $
 .\"	$NetBSD: link.2,v 1.7 1995/02/27 12:34:01 cgd Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993
@@ -30,7 +30,7 @@
 .\"
 .\"     @(#)link.2	8.3 (Berkeley) 1/12/94
 .\"
-.Dd $Mdocdate: March 25 2024 $
+.Dd $Mdocdate: July 18 2024 $
 .Dt LINK 2
 .Os
 .Sh NAME
@@ -65,15 +65,13 @@ is removed, the file
 .Fa name2
 is not deleted and the link count of the underlying object is decremented.
 .Pp
+For the hard link to succeed,
 .Fa name1
-must exist for the hard link to succeed and both
+must exist and not be a directory, and both
 .Fa name1
 and
 .Fa name2
 must be in the same file system.
-As mandated by POSIX.1
-.Fa name1
-may not be a directory.
 .Pp
 The
 .Fn linkat