builder/vmware: properly test file URLs
builder/vmware: properly test file URLs

zyegfryed/packer,suma/packer,TranscendComputing/packer,patricklucas/packer,suma/packer,smerrill/packer,smerrill/packer,TranscendComputing/packer,Kaixiang/packer,smerrill/packer,TranscendComputing/packer,TranscendComputing/packer,Kaixiang/packer,suma/packer,msabramo/packer,patricklucas/packer,msabramo/packer,Kaixiang/packer,zyegfryed/packer,Kaixiang/packer,patricklucas/packer,zyegfryed/packer,msabramo/packer,zyegfryed/packer,msabramo/packer,patricklucas/packer,smerrill/packer,suma/packer