Update spec/classes/rabbitmq_spec.rb

Co-authored-by: Will Yardley <wyardley@users.noreply.github.com>

Author: jplindquist

spec/classes/rabbitmq_spec.rb

@@ -423,7 +423,7 @@
           end
 
           it 'for cluster_nodes' do
-            is_expected.to contain_file('rabbitmq.config').with('content' => %r{^ {8}\{cluster_nodes, \{\['rabbit@hare-1', 'rabbit@hare-2'\], ram})
+            is_expected.to contain_file('rabbitmq.config').with('content' => %r{^ {8}\{cluster_nodes, \{\[\], ram})
           end
         end
       end