Touch the last worklog for an issue (changes the updated date on the worklog).  We use this date as the 'mark' for
        determining the time elapsed for the next log entry.

def touch_last_worklog(self, issue):
        """
        Touch the last worklog for an issue (changes the updated date on the worklog).  We use this date as the 'mark' for
        determining the time elapsed for the next log entry.
        """
        worklogs = self.get_worklog(issue)
        if worklogs:
            last_worklog = worklogs[-1]
            last_worklog.update()
            return True