Revert commitid KcCtsA53F9UQzc0t:

"Make exit(), fclose(), fflush(), and freopen() comply with POSIX-2008
 requirements for setting the underlying file position when flushing
 read-mode streams, and make an fseek()-after-fflush() not change the
 underlying file position."

Something isn't correct about it and it breaks at least initdb from
the postgresql-server package.

discussed with tb@, semarie@, and deraadt@

1 files changed, 6 insertions, 5 deletions

diff --git a/src/lib/libc/stdlib/exit.3 b/src/lib/libc/stdlib/exit.3
index 5e006e53f4..22acade86c 100644
--- a/src/lib/libc/stdlib/exit.3
+++ b/src/lib/libc/stdlib/exit.3
@@ -29,9 +29,9 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     $OpenBSD: exit.3,v 1.17 2024/08/12 20:53:09 guenther Exp $
+.\"     $OpenBSD: exit.3,v 1.18 2024/08/30 03:44:48 guenther Exp $
 .\"
-.Dd $Mdocdate: August 12 2024 $
+.Dd $Mdocdate: August 30 2024 $
 .Dt EXIT 3
 .Os
 .Sh NAME
@@ -54,7 +54,9 @@ Call the functions registered with the
 .Xr atexit 3
 function, in the reverse order of their registration.
 .It
-Flush and close all open streams.
+Flush all open output streams.
+.It
+Close all open streams.
 .It
 Unlink all files created with the
 .Xr tmpfile 3
@@ -77,7 +79,6 @@ function never returns.
 .Sh SEE ALSO
 .Xr _exit 2 ,
 .Xr atexit 3 ,
-.Xr fflush 3 ,
 .Xr intro 3 ,
 .Xr sysexits 3 ,
 .Xr tmpfile 3
@@ -85,7 +86,7 @@ function never returns.
 The
 .Fn exit
 function conforms to
-.St -p1003.1-2024 .
+.St -isoC-99 .
 .Sh HISTORY
 An
 .Fn exit