The man page needs dash escaping in UTF-8 environments

The man page needs dash escaping in UTF-8 environments

There was a debian bugreport which was filed in 2005 . It was patched but
it seems that nobody forwarded the patch to the openvpn project itself.

The problem is quite simple:
The dashes for options (the double dashes) are not escaped. This causes
trouble in relationship with utf-8 .

Since the bugreport was closed it was patched within the debian/ubuntu
packages itself. I've attached the patch to get it atleast reviewed by the
openvpn project itself.

See <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=296133> for details.

sf.net tracker:
<https://sourceforge.net/tracker/?func=detail&aid=2935611&group_id=48978&atid=454721>

Signed-off-by: David Sommerseth <dazo@users.sourceforge.net>
Tested-by: Jan Just Keijser <janjust@nikhef.nl>
Tested-by: Pavel Shramov <shramov@mexmat.net>
Tested-by: Samuli Seppänen <samuli@openvpn.net>