Fix vagrant package --base [GH-1615]

CHANGELOG.md

@@ -1,6 +1,8 @@
 ## 1.2.2 (unreleased)
 
+BUG FIXES:
 
+  - `vagrant package --base` works again. [GH-1615]
 
 ## 1.2.1 (April 17, 2013)
 

plugins/commands/package/command.rb

@@ -54,8 +54,8 @@ module VagrantPlugins
         provider = Vagrant.plugin("2").manager.providers[:virtualbox]
         vm = Vagrant::Machine.new(
           options[:base],
-          :virtualbox, provider,
-          nil, @env.config_global,
+          :virtualbox, provider[0], nil, provider[1],
+          @env.config_global,
           nil, nil,
           @env, true)
         @logger.debug("Packaging base VM: #{vm.name}")