[master] Added release note citation

ff343a30 · Thomas Markwalder · 251bb4b9 · ff343a30
Commit ff343a30 authored Jun 21, 2017 by Thomas Markwalder
--- a/RELNOTES
+++ b/RELNOTES
@@ -149,7 +149,7 @@ by Eric Young (eay@cryptsoft.com).
  by dhclient only if and when the it first attempts an update; and never by
  dhcrelay.  Prior to this all three always did the initialization at startup
  which causes them to always open on and listen for traffic on two random
-  ports.
+  ports. Thanks to Rodney Beede for reporting the issue.
  [ISC-Bugs #45290]
  [ISC-Bugs #33377]