anchor.diff:  )
   if "%BUILD:~-11%" == "_virtualbox" (
     set boxname=%BUILD:~0,-11%
  -  set template=%boxname%
  +  set template=%BUILD:~0,-11%
     set builder=virtualbox-iso
     set spec=virtualbox
   )
  
positive.code: set BUILD=%1
  if "%BUILD:~-7%" == "_vmware" (
    set boxname=%BUILD:~0,-7%
    set template=%boxname%
    set builder=vmware-iso
    set spec=vmware
  )
  
negative.code:   goto :EOF
  )
  
  @echo.
  @echo boxname = %boxname%
  @echo template = %template%
  @echo builder = %builder%
  