Remove all uses of \sectcode; we can now use logical markup everywhere.
diff --git a/Doc/lib/librfc822.tex b/Doc/lib/librfc822.tex
index bfc63c9..945aef2 100644
--- a/Doc/lib/librfc822.tex
+++ b/Doc/lib/librfc822.tex
@@ -1,4 +1,4 @@
-\section{Standard Module \sectcode{rfc822}}
+\section{Standard Module \module{rfc822}}
 \label{module-rfc822}
 \stmodindex{rfc822}