jsonrpc-get_info free_space is incorrect
The value is incorrect on port 18089.

`curl http://127.0.0.1:18081/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"get_info"}' -H 'Content-Type: application/json'`
`curl http://127.0.0.1:18089/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"get_info"}' -H 'Content-Type: application/json'`

database_size is also different.