Merge branch '5198-detect-empty-mysql-db' into 'master'

mysql update message text on empty db

See merge request !60

plugins/localdump/mysql.sh

@@ -101,7 +101,7 @@ function mysql.db.dump(){
           _iTables=$( mysql --skip-column-names --batch -e "use $_dbname; show tables ;" | wc -l )
           if [ $_iTables -eq 0 ];
           then
-            echo -n "NO DATA in database"
+            echo -n "EMPTY DATABASE ... "
           else
             echo "ERROR: no data - the dump doesn't contain any CREATE or INSERT statement."
             # force an error