should be slaveAgentPort as it is part of Jenkins itself, not the age…

…nt wrapper

spec/acceptance/class_spec.rb

@@ -95,7 +95,7 @@ class {'jenkins':
     end
 
     describe file('/var/lib/jenkins/config.xml') do
-      it { is_expected.to contain '  <agentPort>7777</agentPort>' }
+      it { is_expected.to contain '  <slaveAgentPort>7777</slaveAgentPort>' }
     end
   end
 end