Another fix related to unit test framework

Another fix related to unit test framework

Continuing to fix breakage caused by commit 40cb4cfc5d011102.

It seems it was a conflict in vendor/Makefile.am's distdir target,
confusing autotools so it wouldn't actually parse that directory
properly.  The result was that 'make distcheck' would fail and
tarballs created would just ship with an empty vendor/ directory.

Also remove the 'foreign' AUTOMAKE_OPTIONS flag, as we don't use
that many places at all.  Things work well without this flag.

The comment had to be moved to a single line, otherwise the
white spaces between the end of the variable assignment and the
hash character got added to the variable.

 [v3 - Further improve white space issues, now 'make clean'
       should work too]
 [v2 - Fix white space issues in path variables]

Signed-off-by: David Sommerseth <dazo@privateinternetaccess.com>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1464976163-6162-1-git-send-email-openvpn@sf.lists.topphemmelig.net>
URL: http://article.gmane.org/gmane.network.openvpn.devel/11778