Fix vm.save on customize. no longer needs the boolean argument

lib/vagrant/actions/vm/customize.rb

@@ -9,7 +9,7 @@ module Vagrant
           @runner.env.config.vm.run_procs!(@runner.vm)
 
           # Save the vm
-          @runner.vm.save(true)
+          @runner.vm.save
         end
       end
     end

test/vagrant/actions/vm/customize_test.rb

@@ -9,7 +9,7 @@ class CustomizeActionTest < Test::Unit::TestCase
   context "executing" do
     should "run the VM customization procs then save the VM" do
       @runner.env.config.vm.expects(:run_procs!).with(@vm)
-      @vm.expects(:save).with(true).once
+      @vm.expects(:save).once
       @action.execute!
     end
   end