Documentation clarified re. config socket listener protocol
diff --git a/Doc/lib/liblogging.tex b/Doc/lib/liblogging.tex
index 8146059..cca83ca 100644
--- a/Doc/lib/liblogging.tex
+++ b/Doc/lib/liblogging.tex
@@ -1396,7 +1396,10 @@
will be sent as a file suitable for processing by \function{fileConfig()}.
Returns a \class{Thread} instance on which you can call \method{start()}
to start the server, and which you can \method{join()} when appropriate.
-To stop the server, call \function{stopListening()}.
+To stop the server, call \function{stopListening()}. To send a configuration
+to the socket, read in the configuration file and send it to the socket
+as a string of bytes preceded by a four-byte length packed in binary using
+struct.\code{pack(">L", n)}.
\end{funcdesc}
\begin{funcdesc}{stopListening}{}