If the module return is not parsed, always show stderr information even if -D (debug)

is not specified.  This will help for users that don't have prerequisites installed
(like python-simplejson on old RHEL) and do not know to run -D.

lib/ansible/runner.py

@@ -640,7 +640,8 @@ class Runner(object):
             else:
                 self.callbacks.on_ok(host, data)
 
-            if self.debug and err:
+            if err:
+                if self.debug or data.get('parsed', True) == False:
                     self.callbacks.on_error(host, err)
 
         return result