Whenever a wiki page that doesn't exist is accessed in MediaWiki, it logs a 404 error in the Apache logs. This quickly adds up to a lot of false-positives on 404 reports for something that is normal operation for MediaWiki.

MediaWiki is doing the correct thing here -- if the page doesn't exist, then 404 should be the HTTP status code. But at the same time, as a system admin, I don't care about these particular 404 errors, so I don't want to be bothered by them in my logs.