Template the name of the task

Broken by 1e0295c. Fixes #1698.

lib/ansible/playbook/__init__.py

@@ -282,7 +282,7 @@ class PlayBook(object):
     def _run_task(self, play, task, is_handler):
         ''' run a single task in the playbook and recursively run any subtasks.  '''
 
-        self.callbacks.on_task_start(task.name, is_handler)
+        self.callbacks.on_task_start(utils.template(play.basedir, task.name, task.module_vars), is_handler)
 
         # load up an appropriate ansible runner to run the task in parallel
         results = self._run_task_internal(task)