From 2e386deeae8cad0ab70f144b4f5aee73f814571d Mon Sep 17 00:00:00 2001
From: James Cammarata <jimi@sngx.net>
Date: Wed, 1 Jul 2015 11:55:00 -0400
Subject: [PATCH] Make undefined variables in debug var=foo more obvious

Fixes #9935
---
 lib/ansible/plugins/action/debug.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/ansible/plugins/action/debug.py b/lib/ansible/plugins/action/debug.py
index 94056e496c..957e56e499 100644
--- a/lib/ansible/plugins/action/debug.py
+++ b/lib/ansible/plugins/action/debug.py
@@ -35,6 +35,8 @@ 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 results == self._task.args['var']:
+                results = "VARIABLE IS NOT DEFINED!"
             result = dict()
             result[self._task.args['var']] = results
         else: