Make sure we have a valid integer even if date is empty (#1485055)

thomascube

2008-05-15 3978ab3928776670299cac6498d86297bf1a2dec

 program/include/rcube_mdb2.php

@@ -500,7 +500,7 @@
      case 'mysqli':
      case 'mysql':
      case 'sqlite':
        return "FROM_UNIXTIME($timestamp)";
        return sprintf("FROM_UNIXTIME(%d)", $timestamp);

      default:
        return date("'Y-m-d H:i:s'", $timestamp);