Using the vm_name parameter to name OVA/OVF files and their attachments

builder/virtualbox/step_export.go

@@ -50,7 +50,7 @@ func (s *stepExport) Run(state multistep.StateBag) multistep.StepAction {
 	}
 
 	// Export the VM to an OVF
-	outputPath := filepath.Join(config.OutputDir, "packer."+config.Format)
+	outputPath := filepath.Join(config.OutputDir, vmName+"."+config.Format)
 
 	command = []string{
 		"export",

website/source/docs/builders/virtualbox.html.markdown

@@ -191,7 +191,7 @@ Optional:
   By default this is ".vbox_version", which will generally upload it into
   the home directory.
 
-* `vm_name` (string) - This is the name of the VMX file for the new virtual
+* `vm_name` (string) - This is the name of the OVF file for the new virtual
   machine, without the file extension. By default this is "packer-BUILDNAME",
   where "BUILDNAME" is the name of the build.