def addExtraLogItem(self, item):
self.__logItems.append(item)<EOL>return<EOL>
Add an item to the log items list for the currently running session.
        Our self.myAssertXXXXXX wrappers add the current items to the msg that is
        passed to the unittest's assertXXXXX methods.  The extra info will show up
        in test results if the test fails.