On d4.6, php 4.3.9, apache 2.0, mysql 4.1.3. Am getting this warning on page load. Not critical, but if it's not hard to hack it out, it would be nice not to have aggregator2 causing warnings on all page loads :-)

Warning: Call-time pass-by-reference has been deprecated - argument passed by value; If you would like to pass it by reference, modify the declaration of [runtime function name](). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file. However, future versions may not support this any longer. in /var/www/html/drupalog/modules/aggregator2/aggregator2.module on line 1856

If you need more information, let me know,