fix 1.9ism in testcase
fix 1.9ism in testcase

rapid7/rbvmomi,logankimmel/rbvmomi,rlane/rbvmomi,10xEngineer/rbvmomi,rlane/rbvmomi,synthead/rbvmomi,rapid7/rbvmomi,synthead/rbvmomi,frapposelli/vagrant-rbvmomi,omar-infinio/rbvmomi,vmware/rbvmomi,frapposelli/vagrant-rbvmomi,jusko/rbvmomi,10xEngineer/rbvmomi,rcorrieri/rbvmomi,jusko/rbvmomi