Issue  #13073 - Address the review comments made by Ezio.
diff --git a/Doc/library/http.client.rst b/Doc/library/http.client.rst
index 9ef7956..9b1ab0f 100644
--- a/Doc/library/http.client.rst
+++ b/Doc/library/http.client.rst
@@ -475,11 +475,10 @@
 .. method:: HTTPConnection.endheaders(message_body=None)
 
    Send a blank line to the server, signalling the end of the headers. The
-   optional message_body argument can be used to pass message body
-   associated with the request.  The message body will be sent in
-   the same packet as the message headers if possible.  The
-   message_body should be a string.
-
+   optional *message_body* argument can be used to pass a message body
+   associated with the request.  The message body will be sent in the same
+   packet as the message headers if it is string, otherwise it is sent in a
+   separate packet.
 
 .. method:: HTTPConnection.send(data)