upstream commit

do not confuse mandoc by presenting "Dd";

Upstream-ID: 1470fce171c47b60bbc7ecd0fc717a442c2cfe65
diff --git a/ssh-agent.1 b/ssh-agent.1
index dabc5c4..c4b50bb 100644
--- a/ssh-agent.1
+++ b/ssh-agent.1
@@ -1,4 +1,4 @@
-.\" $OpenBSD: ssh-agent.1,v 1.61 2015/11/15 22:26:49 jcs Exp $
+.\" $OpenBSD: ssh-agent.1,v 1.62 2015/11/15 23:54:15 jmc Exp $
 .\"
 .\" Author: Tatu Ylonen <ylo@cs.hut.fi>
 .\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -43,7 +43,7 @@
 .Sh SYNOPSIS
 .Nm ssh-agent
 .Op Fl c | s
-.Op Fl Dd
+.Op Fl \&Dd
 .Op Fl a Ar bind_address
 .Op Fl E Ar fingerprint_hash
 .Op Fl t Ar life