fixing comments for tests and doc

Author: jesinity

client/rest-high-level/src/test/java/org/elasticsearch/client/documentation/TasksClientDocumentationIT.java

@@ -162,6 +162,9 @@ public void testCancelTasks() throws IOException {
             // end::cancel-tasks-request
 
             // tag::cancel-tasks-request-filter
+            CancelTasksRequest byTaskIdRequest = new org.elasticsearch.client.tasks.CancelTasksRequest.Builder()
+                .withTaskId(new org.elasticsearch.client.tasks.TaskId("myNode",44L))
+                .build();
             // end::cancel-tasks-request-filter
 
         }

client/rest-high-level/src/test/java/org/elasticsearch/client/tasks/CancelTasksResponseParsingTests.java

@@ -25,7 +25,7 @@
 import java.io.IOException;
 import java.util.List;
 
-public class ElasticSearchExceptionTests extends AbstractResponseTestCase<org.elasticsearch.ElasticsearchException,
+public class ElasticsearchExceptionTests extends AbstractResponseTestCase<org.elasticsearch.ElasticsearchException,
     org.elasticsearch.client.tasks.ElasticsearchException> {
 
     @Override