Logging: Clean up skipping test

Clean up on top of the last fix: if we skip the entire test case then
the test run would fail because we skipped all the tests. This adds a
dummy test case to prevent that. It is a fairly nasty work around I plan
to work on something that makes this not required any more anyway.

qa/unconfigured-node-name/src/test/java/org/elasticsearch/unconfigured_node_name/NodeNameInLogsIT.java

@@ -43,4 +43,11 @@ public class NodeNameInLogsIT extends NodeNameInLogsIntegTestCase {
             }
         });
     }
+
+    public void testDummy() {
+        /* Dummy test case so that when we run this test on a platform that
+         * does not support our syscall filters and we skip the test above
+         * we don't fail the entire test run because we skipped all the tests.
+         */
+    }
 }