add a warning that this script is not supported, and that you could simply use "svn update"

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@18113 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/utils/svn_update.sh

 #!/bin/bash
 
+echo -e "\033[0;31mThis is an unsupported script. You should use 'svn update' command instead\033[0m"
+echo "Press Enter to proceed"
+
 # Modules to get from the SVN
 PRODUCTS="CMFActivity CMFCategory ERP5 ERP5Banking ERP5Catalog \
           ERP5Form ERP5OOo ERP5Security ERP5Subversion ERP5SyncML \