(maint) Fix failing spec test with Puppet 3.3.0-rc2

Without this patch the stdlib spec tests are failing against recent
versions of Puppet.  The root cause of this problem is a change in the
behavior of create_resources in Puppet 6baa57b.  The change in behavior
caused the :name key to be omitted from the hash returned by
Puppet::Parser::Resource#to_hash which in turn is causing the test
failure.

This patch addresses the problem by updating the test to match the
description of the example.  Only the attribute :ensure is checked
instead of the full hash itself.

Author: Jeff McCune

spec/functions/ensure_packages_spec.rb

@@ -36,7 +36,7 @@
     it 'declares package resources with ensure => present' do
       should run.with_params(['facter'])
       rsrc = compiler.catalog.resource('Package[facter]')
-      rsrc.to_hash.should == {:name => "facter", :ensure => "present"}
+      rsrc.to_hash[:ensure].should eq("present")
     end
   end
 end