We have had issues with Drupal sending log information to syslog, which conicidently gets copied to the console for ALL users to see. Needless to say, this is not acceptable in a shared webhosting environment.
To disable the syslog module using the MySQL command line, run the following SELECT to look at the state of your data before the change. This will also help you to find the full name and enabled/disabled status of the module too:
SELECT name,status FROM system WHERE type='module';
Then to disable your syslog module, set the status to 0 for the module name that you want to disable:
UPDATE system SET status='0' WHERE name='syslog';
Check your handiwork using the SELECT statement again. Hope this helps someone out there.