a fix for bug 8251; the var_val needs to accept longer strings or mass...

a fix for bug 8251; the var_val needs to accept longer strings or mass confusion and a lot of lost time is the result

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@46801 65c4cc65-6c06-0410-ace0-fbb531ad65f3