Refer to author indirectly (#266)

This is a quick-fix since the comment-author refers to the team member who FCPed

Author: Centril

src/github/nag.rs

@@ -1187,9 +1187,8 @@ impl<'a> RfcBotComment<'a> {
                 msg.push_str("), is now **complete**.");
 
                 msg.push_str("\n\nAs the automated representative of the governance process, \
-                              I would like to thank @");
-                msg.push_str(&author.login);
-                msg.push_str(" for their work and everyone else who contributed.");
+                              I would like to thank the author for their work and everyone else \
+                              who contributed.");
 
                 match disposition {
                     FcpDisposition::Merge => {