fix to xio::xdataparse
xdataparse would hang when parsing a line which had a empty element at the end (e.g. 1,2,3,4,). This update correctly ends the parsing and inserts an empty element at the end.
xdataparse would hang when parsing a line which had a empty element at the end (e.g. 1,2,3,4,). This update correctly ends the parsing and inserts an empty element at the end.