Fixed error in survey rake task
Fixed error in survey rake task

openpprn/opn,openpprn/opn,ccfapprn/network,ccfapprn/network,myapnea/www.myapnea.org,openpprn/opn,myapnea/www.myapnea.org,ccfapprn/network,ccfapprn/network,myapnea/www.myapnea.org,openpprn/opn