Apply API changes to fluentd callback

fluentd.py

@@ -126,9 +126,6 @@ class CallbackModule(CallbackBase):
 
         self._log(logging.INFO, status, 'finish', 'Finish playbook %s' % self.playbook, extra=summarize_stat)
 
-    def v2_playbook_on_setup(self):
-        super(CallbackModule, self).v2_playbook_on_setup()
-
     def v2_playbook_on_no_hosts_matched(self):
         super(CallbackModule, self).v2_playbook_on_no_hosts_matched()
 
@@ -166,6 +163,7 @@ class CallbackModule(CallbackBase):
         self._log(logging.INFO, status, 'task', 'Task %s' % task_name, extra=result._result, host=result._host.name, task=task_name)
 
     def v2_runner_on_failed(self, result, **kwargs):
+        result._result['failed'] = True
         self.v2_runner_on_ok(result)
 
     def v2_runner_on_unreachable(self, result):
@@ -178,14 +176,12 @@ class CallbackModule(CallbackBase):
         self.v2_runner_on_ok(result)
 
     def v2_runner_on_async_failed(self, result):
+        result._result['failed'] = True
         self.v2_runner_on_ok(result)
 
     def v2_runner_on_skipped(self, result):
         super(CallbackModule, self).v2_runner_on_skipped(result)
 
-    def v2_runner_on_file_diff(self, result, diff):
-        super(CallbackModule, self).v2_runner_on_file_diff(result, diff)
-
     def v2_runner_retry(self, result):
         super(CallbackModule, self).v2_runner_retry(result)
 
@@ -193,15 +189,12 @@ class CallbackModule(CallbackBase):
         self.v2_runner_on_ok(result)
 
     def v2_runner_item_on_failed(self, result):
+        result._result['failed'] = True
         self.v2_runner_on_ok(result)
 
     def v2_runner_item_on_skipped(self, result):
         super(CallbackModule, self).v2_runner_item_on_skipped(result)
 
-    def v2_runner_on_no_hosts(self, task):
-        super(CallbackModule, self).v2_runner_on_no_hosts(task)
-
-
     ##### OTHER callbacks #####
 
     def v2_on_file_diff(self, result):