Fixes #1314 Migration bug with variable declaration

modules/Migration/schema/600_to_610.php

@@ -705,7 +705,7 @@ echo "<br>Changed timezone column name for mail scanner";
$result = $adb->pquery('SELECT task_id FROM com_vtiger_workflowtasks WHERE workflow_id IN
(SELECT workflow_id FROM com_vtiger_workflows WHERE module_name IN (?, ?))
AND task LIKE ?', array('Calendar', 'Events', '%VTSendNotificationTask%'));
-$numOfRowas = $adb->num_rows($result);
+$numOfRows = $adb->num_rows($result);
for ($i = 0; $i < $numOfRows; $i++) {
$tm = new VTTaskManager($adb);
$task = $tm->retrieveTask($adb->query_result($result, $i, 'task_id'));