Note that usegmt is new in 2.4. Closes #1239681.

Doc/lib/emailutil.tex

@@ -103,7 +103,8 @@ The default is \code{False} meaning UTC is used.
 Optional \var{usegmt} is a flag that when \code{True}, outputs a 
 date string with the timezone as an ascii string \code{GMT}, rather
 than a numeric \code{-0000}. This is needed for some protocols (such
-as HTTP). This only applies when \var{localtime} is \code{False}
+as HTTP). This only applies when \var{localtime} is \code{False}.
+New in Python 2.4.
 \end{funcdesc}
 
 \begin{funcdesc}{make_msgid}{\optional{idstring}}