[syslog-ng]Filtering *out* logs

[Nicholas Bernstein]

I get the line below, many, many times in my logs, and, really, it just
clutters things up. I would like to filter this out. What is the best
way to do this? I tried specifying the destination file as /dev/null,
but it didn't seem to work. 

"wu-ftpd - TLS settings: control allow, client_cert allow, data allow"

Any information would be appreciated. I took a look through all the
example config files I could find, but didn't find a way to do it. 

TIA,
Nick
-- 
+---------------------------------------------------------------+
| Nicholas Bernstein            | nick@docmagic.com             |
| UNIX Systems Administrator    | http://www.docmagic.com       |
| Document Systems Inc.         |                               |
+---------------------------------------------------------------+