Fix call to add_event_source

@@ -55,8 +55,8 @@ def main(config=None, debug=False, command=None):
         ctx.delete()
         click.echo('...done')
     elif command == 'add-event-source':
-        click.echo('Adding event source ...')
-        ctx.add_event_source()
+        click.echo('Adding event sources ...')
+        ctx.add_event_sources()
         click.echo('...done')
 
 

@@ -89,7 +89,7 @@ class S3EventSource(EventSource):
             'CloudFunctionConfiguration': {
                 'Id': self._make_notification_id(function.name),
                 'Events': [e for e in self._config['events']],
-                'CloudFunction': function.arn(),
+                'CloudFunction': function.arn,
                 'InvocationRole': self._context.invoke_role_arn}}
         try:
             response = self._s3.put_bucket_notification(