Index: design/message_spec.txt
===================================================================
--- design/message_spec.txt	(revision e437a19ba7896aba2579e8234ade452572a4105f)
+++ design/message_spec.txt	(revision 1a47469cc5fbf8e828006f2e83e45410491c4363)
@@ -12,4 +12,5 @@
 MSG_TYPE_LOGOUT
 Client sends this message to logout. Contains no extra data. The server uses the sender address to determine which player sent it.
+Server broadcasts a reply with the player id if logout was successfull or sends the sender's id and a string with an error message back to the original sender.
 
 MSG_TYPE_CHAT