--- a/plugins/mod_admin_socket.lua	Tue Mar 15 10:48:46 2022 +0100
+++ b/plugins/mod_admin_socket.lua	Wed Mar 16 19:32:17 2022 +0100
@@ -3,6 +3,12 @@
 local have_unix, unix = pcall(require, "socket.unix");
 
 if have_unix and type(unix) == "function" then
+	-- COMPAT #1717
+	-- Before the introduction of datagram support, only the stream socket
+	-- constructor was exported instead of a module table. Due to the lack of a
+	-- proper release of LuaSocket, distros have settled on shipping either the
+	-- last RC tag or some commit since then.
+	-- Here we accomodate both variants.
 	unix = { stream = unix };
 end
 if not have_unix or type(unix) ~= "table" then