Fix Ruby Style issues in the Vagrantfile found by Rubocop
Fix Ruby Style issues in the Vagrantfile found by Rubocop

Change-Id: Icf6559d12d2e6c5ec969f7fcbdf6752b425b0a8e

stackforge/faafo,MartinPaulo/son_of_faafo,MartinPaulo/faafo,MartinPaulo/faafo,fifieldt/faafo,MartinPaulo/son_of_faafo,fifieldt/faafo,stackforge/faafo,enolfc/faafo,stackforge/faafo,fifieldt/faafo,MartinPaulo/son_of_faafo,hcarlsso/CloudVideo,hcarlsso/CloudVideo,MartinPaulo/faafo,enolfc/faafo,enolfc/faafo,hcarlsso/CloudVideo