Remove all uses of \sectcode; we can now use logical markup everywhere.
diff --git a/Doc/lib/libpanel.tex b/Doc/lib/libpanel.tex
index 57b8e4f..3553808 100644
--- a/Doc/lib/libpanel.tex
+++ b/Doc/lib/libpanel.tex
@@ -1,4 +1,4 @@
-\section{Standard Module \sectcode{panel}}
+\section{Standard Module \module{panel}}
 \label{module-panel}
 \stmodindex{panel}
 
@@ -29,7 +29,7 @@
 or
 \code{panel.defpanellist()}.
 
-\section{Standard Module \sectcode{panelparser}}
+\section{Standard Module \module{panelparser}}
 \label{module-panelparser}
 \stmodindex{panelparser}
 
@@ -45,7 +45,7 @@
 For more details, read the module file.
 % XXXXJH should be funcdesc, I think
 
-\section{Built-in Module \sectcode{pnl}}
+\section{Built-in Module \module{pnl}}
 \label{module-pnl}
 \bimodindex{pnl}