fixed service fact usage

lib/ansible/plugins/action/service.py

@@ -32,7 +32,7 @@ class ActionModule(ActionBase):
 
         result = super(ActionModule, self).run(tmp, task_vars)
 
-        module = self._task.args.get('use', 'auto')
+        module = self._task.args.get('use', 'auto').lower()
 
         if module == 'auto':
             try:
@@ -43,8 +43,8 @@ class ActionModule(ActionBase):
         if module == 'auto':
             facts = self._execute_module(module_name='setup', module_args=dict(gather_subset='!all', filter='ansible_service_mgr'), task_vars=task_vars)
             self._display.debug("Facts %s" % facts)
-            if 'failed' not in facts:
-                module = getattr(facts['ansible_facts'], 'ansible_service_mgr', 'auto')
+            if 'ansible_facts' in facts and  'ansible_service_mgr' in facts['ansible_facts']:
+                module = facts['ansible_facts']['ansible_service_mgr']
 
         if not module or module == 'auto' or module not in self._shared_loader_obj.module_loader:
             module = 'service'