Fix: Fixed invalid method call name.

lib/hawat/blueprints/users/__init__.py

@@ -898,7 +898,7 @@ class EnableView(HTMLMixin, SQLAlchemyMixin, ItemEnableView):  # pylint: disable
 
     def do_after_action(self, item):
         """*Implementation* of :py:func:`hawat.base.ItemActionView.do_after_action`."""
-        self.send_infomail(item)
+        self.inform_user(item)
 
 
 class DisableView(HTMLMixin, SQLAlchemyMixin, ItemDisableView):  # pylint: disable=locally-disabled,too-many-ancestors