Fix typo in Kubernetes Cluster app

Due to the fact that yaql 0.2 allows to compare the number with a
string there are no errors in this check and method works
incorrectly allowing to application to use port 22

Change-Id: I4e6be454b9ee3d6f5f594856610c201e741f310d
Closes-Bug: #1481748

Kubernetes/KubernetesCluster/package/Classes/KubernetesCluster.yaml

@@ -1,4 +1,4 @@
-#  Licensed under the Apache License, Version 2.0 (the "License"); you may
+z#  Licensed under the Apache License, Version 2.0 (the "License"); you may
 #  not use this file except in compliance with the License. You may obtain
 #  a copy of the License at
 #
@@ -425,7 +425,7 @@ Methods:
       - protocol:
           Contract: $.string().notNull()
     Body:
-      - If: initial != 22 and $._checkIfPortIsNotUsed($initial, $protocol)
+      - If: $initial != 22 and $._checkIfPortIsNotUsed($initial, $protocol)
         Then:
           Return: $initial