\longprogramopt: New macro.
diff --git a/Doc/texinputs/python.sty b/Doc/texinputs/python.sty
index 3f0370a..ce041b8 100644
--- a/Doc/texinputs/python.sty
+++ b/Doc/texinputs/python.sty
@@ -809,6 +809,8 @@
\newcommand{\rfc}[1]{RFC #1\index{RFC!RFC #1}}
\newcommand{\program}[1]{\strong{#1}}
\newcommand{\programopt}[1]{\strong{#1}}
+% Note that \longprogramopt provides the '--'!
+\newcommand{\longprogramopt}[1]{\strong{-{}-#1}}
% cited titles: \citetitle{Title of Work}
% online: \citetitle[url-to-resource]{Title of Work}