erp5_promise: correct bad syntax when there is no smtp auth.

bt5/erp5_promise/SkinTemplateItem/portal_skins/erp5_promise/Alarm_installMailServer.xml

@@ -72,7 +72,8 @@ if len(auth_item) == 2:\n
   auth, promise_url = auth_item\n
   smtp_uid, smtp_pwd = auth.split(\':\')\n
 else:\n
-  smtp_uid, smtp_pwd = ""\n
+  smtp_uid = ""\n
+  smtp_pwd = ""\n
   promise_url = auth_item[0]\n
 \n
 domain_port = promise_url.split(\'/\', 1)[0]\n

bt5/erp5_promise/bt/revision

-27
\ No newline at end of file
+28
\ No newline at end of file