Remove all uses of \sectcode; we can now use logical markup everywhere.
diff --git a/Doc/lib/libdbm.tex b/Doc/lib/libdbm.tex
index ac5343f..c4317fe 100644
--- a/Doc/lib/libdbm.tex
+++ b/Doc/lib/libdbm.tex
@@ -1,4 +1,4 @@
-\section{Built-in Module \sectcode{dbm}}
+\section{Built-in Module \module{dbm}}
 \label{module-dbm}
 \bimodindex{dbm}