Replace "\begin{classdesc}{SomeClass}{\unspecified}" with
"\begin{classdesc*}{SomeClass}" -- the rendering of \unspecified was
identical to \moreargs, so this helps clarify things just a little.
diff --git a/Doc/lib/libzipfile.tex b/Doc/lib/libzipfile.tex
index 8225cfb..6d7ba1e 100644
--- a/Doc/lib/libzipfile.tex
+++ b/Doc/lib/libzipfile.tex
@@ -25,13 +25,13 @@
The error raised for bad ZIP files.
\end{excdesc}
-\begin{classdesc}{ZipFile}{\unspecified}
+\begin{classdesc*}{ZipFile}
The class for reading and writing ZIP files. See
``\citetitle{ZipFile Objects}'' (section \ref{zipfile-objects}) for
constructor details.
\end{classdesc}
-\begin{classdesc}{PyZipFile}{\unspecified}
+\begin{classdesc*}{PyZipFile}
Class for creating ZIP archives containing Python libraries.
\end{classdesc}