Sorry, I copied the wrong line. My brain wasn't in gear

```^%(_apache_error_client)s user .* not found: \S*\s*$```
and
```^%(_apache_error_client)s (Digest: )?user `.*' in realm `.+' (not found|denied by provider): \S*\s*$```
are both matching
```[Thu Jul 18 00:08:39 2013] [error] [client 127.0.0.1] Digest: user `username' in realm `digest private area' not found: /digest_wrongrelm/cant_get_me.html```