Remove all uses of \sectcode; we can now use logical markup everywhere.
diff --git a/Doc/lib/libppath.tex b/Doc/lib/libppath.tex
index 6639c7c..86b5a34 100644
--- a/Doc/lib/libppath.tex
+++ b/Doc/lib/libppath.tex
@@ -1,4 +1,4 @@
-\section{Standard Module \sectcode{posixpath}}
+\section{Standard Module \module{posixpath}}
 \label{module-posixpath}
 \stmodindex{posixpath}