fixed sys schema in sandbox

sandbox/servers/5.7/sys/before_setup.sql

@@ -0,0 +1,22 @@
+-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
+--
+-- This program is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation; version 2 of the License.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with this program; if not, write to the Free Software
+-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+SET NAMES utf8;
+SET @sql_log_bin = @@sql_log_bin;
+SET sql_log_bin = 0;
+
+CREATE DATABASE IF NOT EXISTS sys DEFAULT CHARACTER SET utf8;
+
+USE sys;