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/libdifflib.tex b/Doc/lib/libdifflib.tex
index 0c35d60..5e3c4ad 100644
--- a/Doc/lib/libdifflib.tex
+++ b/Doc/lib/libdifflib.tex
@@ -40,7 +40,7 @@
\end{verbatim}
\end{funcdesc}
-\begin{classdesc}{SequenceMatcher}{\unspecified}
+\begin{classdesc*}{SequenceMatcher}
This is a flexible class for comparing pairs of sequences of any
type, so long as the sequence elements are hashable. The basic
algorithm predates, and is a little fancier than, an algorithm
@@ -72,6 +72,8 @@
\subsection{SequenceMatcher Objects \label{sequence-matcher}}
+The \class{SequenceMatcher} class has this constructor:
+
\begin{classdesc}{SequenceMatcher}{\optional{isjunk\optional{,
a\optional{, b}}}}
Optional argument \var{isjunk} must be \code{None} (the default) or
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}