The moodle.php file in en_utf8 folder (latest releases of moodle 1.8.2) contains an error. The link that gets sent to the site administrator to direct him/her to the site login error messages is incorrect.

I believe that line 1044 of the most recent moodle.php file should read

$string['notifyloginfailuresmessageend'] = 'You can view these logs at $a/course/report/log/index.php?id=1&chooselog=1&modid=site_errors.';

instead of

$string['notifyloginfailuresmessageend'] = 'You can view these logs at $a/course/log.php?id=1&chooselog=1&modid=site_errors.';

larry