SF patch #798255:  Document httplib.HTTPResponse.read "amt" argument
(Contributed by Jeff Epler.)
diff --git a/Doc/lib/libhttplib.tex b/Doc/lib/libhttplib.tex
index 59e6428..50b4cf2 100644
--- a/Doc/lib/libhttplib.tex
+++ b/Doc/lib/libhttplib.tex
@@ -197,8 +197,8 @@
 
 \class{HTTPResponse} instances have the following methods and attributes:
 
-\begin{methoddesc}{read}{}
-Reads and returns the response body.
+\begin{methoddesc}{read}{\optional{amt}}
+Reads and returns the response body, or up to the next \var{amt} bytes.
 \end{methoddesc}
 
 \begin{methoddesc}{getheader}{name\optional{, default}}