Minor modification to set_fact with_items patch

Previous patch was reverted due to the fact that there was an issue
with the results not always being a dictionary (they're sometimes
a unicode string, ie. when the with_items is used with yum). This
minor change corrects that by checking for a dict object.

lib/ansible/playbook/__init__.py

@@ -361,8 +361,16 @@ class PlayBook(object):
 
         # add facts to the global setup cache
         for host, result in contacted.iteritems():
-            facts = result.get('ansible_facts', {})
-            self.SETUP_CACHE[host].update(facts)
+            if 'results' in result:
+                # task ran with_ lookup plugin, so facts are encapsulated in
+                # multiple list items in the results key
+                for res in result['results']:
+                    if type(res) == dict:
+                        facts = res.get('ansible_facts', {})
+                        self.SETUP_CACHE[host].update(facts)
+            else:
+                facts = result.get('ansible_facts', {})
+                self.SETUP_CACHE[host].update(facts)
             # extra vars need to always trump - so update  again following the facts
             self.SETUP_CACHE[host].update(self.extra_vars)
             if task.register: