Tests: fix test_forward_zones in test_xmlrpc/test_dns_plugin

Class test_forward_zones in ipatests/test_xmlrpc/test_dns_plugin
had server IP and zone name interchanged in "expected" dictionart.

I do not understand how this happened.

https://fedorahosted.org/freeipa/ticket/6213

Reviewed-By: Martin Basti <mbasti@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>

ipatests/test_xmlrpc/test_dns_plugin.py

@@ -3460,8 +3460,8 @@ class test_forward_zones(Declarative):
                      u'name': u'DNSServerValidationWarning',
                      u'data': {
                         u'error': lambda x: x.startswith(
-                            u"query '%s SOA':" % forwarder1),
-                        u'server': u"%s" % fwzone2
+                            u"query '%s SOA':" % fwzone2),
+                        u'server': u"%s" % forwarder1
                      }},
                 ),
                 'result': {