mysql_backup.sh: fix error determin remote mysql binary.

hosts/scripts/mysql_backup.sh

@@ -104,9 +104,21 @@ err_Log=${LOCK_DIR}/mysql.err.log
 
 
 if [ $srcHost != "localhost" ] || $_via_ssh_tunnel ;then
+   if $(ssh back@web-01.oopen.de [[ -x "/usr/local/mysql/bin/mysql" ]]) ; then
+      mysql="/usr/local/mysql/bin/mysql"
+   else
       mysql=`$ssh ${ssh_user}@$srcHost which mysql`
+   fi
+   if $(ssh back@web-01.oopen.de [[ -x "/usr/local/mysql/bin/mysqldump" ]]) ; then
+      mysqldump="/usr/local/mysql/bin/mysqldump"
+   else
       mysqldump=`$ssh ${ssh_user}@$srcHost which mysqldump`
+   fi
+   if $(ssh back@web-01.oopen.de [[ -x "/usr/local/mysql/bin/mysqld" ]]) ; then
+      mysqld="/usr/local/mysql/bin/mysqld"
+   else
       mysqld="$($ssh ${ssh_user}@$srcHost which mysqld)"
+   fi
    ssh_options="-o BatchMode=yes -o ConnectTimeout=360"
 else
    mysql=`which mysql`