make error more clear about missing trunk_type param in openzap.conf (and auto…

make error more clear about missing trunk_type param in openzap.conf (and auto tolerate the err) and fix printf metas

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11105 d0543943-73ff-0310-b7d9-9358b9ac24b2