Fix recent changes so that this section will format again.
diff --git a/Doc/lib/libdoctest.tex b/Doc/lib/libdoctest.tex
index 30833da..9b99b9d 100644
--- a/Doc/lib/libdoctest.tex
+++ b/Doc/lib/libdoctest.tex
@@ -406,18 +406,19 @@
Simple fractions are also easier for people to understand, and that makes
for better documentation.
-\end{enumerate}
\item Be careful if you have code that must only execute once.
If you have module-level code that must only execute once, a more foolproof
-definition of \function{_test} is
+definition of \function{_test()} is
\begin{verbatim}
def _test():
import doctest, sys
doctest.testmod(sys.modules["__main__"])
\end{verbatim}
+\end{enumerate}
+
\subsection{Soapbox}