Remove all uses of \sectcode; we can now use logical markup everywhere.
diff --git a/Doc/lib/libcrypt.tex b/Doc/lib/libcrypt.tex
index bdcc7da..8e9a7d3 100644
--- a/Doc/lib/libcrypt.tex
+++ b/Doc/lib/libcrypt.tex
@@ -1,4 +1,4 @@
-\section{Built-in Module \sectcode{crypt}}
+\section{Built-in Module \module{crypt}}
 \label{module-crypt}
 \bimodindex{crypt}