[5494] Updated AUTHORS waiting for submitter answer

AUTHORS

@@ -153,6 +153,9 @@ We have received the following contributions:
  - Ebben Aries
    2017-10: Option length checks improvements for the V-I Vendor Class option
 
+ - Ryan Goodfellow (rcgoodfellow)
+   2018-01: Fix kea-admin typo breaking lease-dump
+
 Kea uses log4cplus (http://sourceforge.net/projects/log4cplus/) for logging,
 Boost (http://www.boost.org/) library for almost everything, and can use Botan
 (http://botan.randombit.net/) or OpenSSL (https://www.openssl.org/) for