ldap responses in freeradius 3.0.4

I use some custom linelogs in my own config which then go to syslog. I noticed that the radius.log actually has statements detailing the ldap responses to an auth attempt (invalid user, incorrect login, etc). I'd like to be able to use some similar messaging in my custom linelog. I browsed the rad_auth file and, while I'm not well versed in C, I was able to determine how the messages are being generated. I'd rather not have to code my own module to accomplish this however. Suggestions? Have I missed an attribute or run-time variable with the return code of an ldap request?