Change all the function attributes from func_* -> __*__. This gets rid
of func_name, func_dict and func_doc as they already exist as __name__,
__dict__ and __doc__.
diff --git a/Doc/lib/libdis.tex b/Doc/lib/libdis.tex
index 3f00fa8..84841e4 100644
--- a/Doc/lib/libdis.tex
+++ b/Doc/lib/libdis.tex
@@ -622,7 +622,7 @@
\end{opcodedesc}
\begin{opcodedesc}{MAKE_CLOSURE}{argc}
-Creates a new function object, sets its \var{func_closure} slot, and
+Creates a new function object, sets its \var{__closure__} slot, and
pushes it on the stack. TOS is the code associated with the function.
If the code object has N free variables, the next N items on the stack
are the cells for these variables. The function also has \var{argc}