Remove all uses of \sectcode; we can now use logical markup everywhere.
diff --git a/Doc/lib/libtempfile.tex b/Doc/lib/libtempfile.tex
index 7832aa2..d81084e 100644
--- a/Doc/lib/libtempfile.tex
+++ b/Doc/lib/libtempfile.tex
@@ -1,4 +1,4 @@
-\section{Standard Module \sectcode{tempfile}}
+\section{Standard Module \module{tempfile}}
 \label{module-tempfile}
 \stmodindex{tempfile}
 \indexii{temporary}{file name}