Log Message:
Upstream fix for ignored TLSDHParamFile option

From 6f120920d359d3b880c5c56bde4c1b91c3bedb01 Mon Sep 17 00:00:00 2001
From: Ben Jencks <ben@bjencks.net>
Date: Sun, 27 Jan 2013 18:27:03 -0500
Subject: [PATCH] ITS#7506 tls_o.c: Fix Diffie-Hellman parameter usage.

If a DHParamFile or olcDHParamFile is specified, then it will be used,
otherwise a hardcoded 1024 bit parameter will be used. This allows the use of
larger parameters; previously only 512 or 1024 bit parameters would ever be
used.

From cfeb28412c28ce9feeea6e6c055286f201bd0a34 Mon Sep 17 00:00:00 2001
From: Howard Chu <hyc@openldap.org>
Date: Sat, 7 Sep 2013 06:39:53 -0700
Subject: [PATCH] ITS#7506 fix prev commit

The patch unconditionally enabled DHparams, which is a significant
change of behavior. Reverting to previous behavior, which only enables
DH use if a DHparam file was configured.