Allow debug var parameter to accept a list or dict. Fix https://github.com/ansible/ansible/issues/13252

lib/ansible/plugins/action/debug.py

@@ -41,6 +41,10 @@ class ActionModule(ActionBase):
         # FIXME: move the LOOKUP_REGEX somewhere else
         elif 'var' in self._task.args: # and not utils.LOOKUP_REGEX.search(self._task.args['var']):
             results = self._templar.template(self._task.args['var'], convert_bare=True)
+            if type(self._task.args['var']) in (list, dict):
+                # If var is a list or dict, use the type as key to display
+                result[str(type(self._task.args['var']))] = results
+            else:
                 if results == self._task.args['var']:
                     results = "VARIABLE IS NOT DEFINED!"
                 result[self._task.args['var']] = results