Its pretty easy, you configure your logging library NOT to log the attribute, key/value pair, whatever containing the credential. If you can't modify it on the server side (which you can lazy bones), you tell your central logging system to mask it out before it is written to disk.

This isn't difficult or non-standard. If you are logging all client request/responses full take including auth creds, credit cards, SSN, etc, you are likely doing it wrong, and possibly violating some industry regulations.