Remove all uses of \sectcode; we can now use logical markup everywhere.
diff --git a/Doc/lib/libarray.tex b/Doc/lib/libarray.tex
index 7ef0c53..19ba91d 100644
--- a/Doc/lib/libarray.tex
+++ b/Doc/lib/libarray.tex
@@ -1,4 +1,4 @@
-\section{Built-in Module \sectcode{array}}
+\section{Built-in Module \module{array}}
 \label{module-array}
 \bimodindex{array}
 \index{arrays}