Fix ansible_lo being used inside of ansible_facts

The logic was keeping ansible_facts['ansible_lo'] instead of fixing it
to be ansible_facts['lo']

lib/ansible/vars/clean.py

@@ -106,7 +106,7 @@ def namespace_facts(facts):
     ''' return all facts inside 'ansible_facts' w/o an ansible_ prefix '''
     deprefixed = {}
     for k in facts:
-        if k in ('ansible_local'):
+        if k in ('ansible_local',):
             # exceptions to 'deprefixing'
             deprefixed[k] = deepcopy(facts[k])
         else: