<?php
/*
Plugin Name: Custom td attributes
Description: Custom td attributes...
Version: 1.00
Requires at least: 2.65
*/

//
addFilter('listRow_tdAttributes', '_customtdAttributes', null, 4);

//
function _customtdAttributes($tdAttributes, $tableName, $fieldname, $record) {

	//
	if (@$tableName == 'your_table') {
		$fieldLabel = _getFieldLabel($fieldname);
		$tdAttributes = 'data-title="'.$fieldLabel.'"';
	}

	//
	return $tdAttributes; // for all other fields
}