Fix Finder.FolderList check
Fix Finder.FolderList check

Need to check the length of filtered objects.

See also: 99c8c5e

bruceadowns/govmomi,ilikejam/govmomi,frapposelli/govmomi,RotatingFans/govmomi,jrmycanady/govmomi,dougm/govmomi,casualjim/govmomi,casualjim/govmomi,mevansam/vsphere-govmomi,egorovv/govmomi,ilikejam/govmomi,casualjim/govmomi,vmware/govmomi,jrmycanady/govmomi,cgtexmex/govmomi,dougm/govmomi,caglar10ur/govmomi,austinlparker/govmomi,austinlparker/govmomi,cgtexmex/govmomi,RotatingFans/govmomi,dougm/govmomi,vmware/govmomi,ilikejam/govmomi,vmware/govmomi,mevansam/vsphere-govmomi,cgtexmex/govmomi,austinlparker/govmomi,mevansam/vsphere-govmomi,egorovv/govmomi,frapposelli/govmomi,jrmycanady/govmomi,bruceadowns/govmomi,caglar10ur/govmomi,frapposelli/govmomi,bruceadowns/govmomi,caglar10ur/govmomi,RotatingFans/govmomi,egorovv/govmomi