diff --git a/Lib/logging/config.py b/Lib/logging/config.py
index ea157db..22132b1 100644
--- a/Lib/logging/config.py
+++ b/Lib/logging/config.py
@@ -225,9 +225,9 @@
             """
             Handle a request.
 
-            Each request is expected to be a 4-byte length,
-            followed by the config file. Uses fileConfig() to do the
-            grunt work.
+            Each request is expected to be a 4-byte length, packed using
+            struct.pack(">L", n), followed by the config file.
+            Uses fileConfig() to do the grunt work.
             """
             import tempfile
             try: