New style section headers.
diff --git a/Doc/mac/libmacdnr.tex b/Doc/mac/libmacdnr.tex
index 04c511b..2242e63 100644
--- a/Doc/mac/libmacdnr.tex
+++ b/Doc/mac/libmacdnr.tex
@@ -1,4 +1,5 @@
-\section{Built-in Module \module{macdnr}}
+\section{\module{macdnr} ---
+         Interfaces to the Macintosh Domain Name Resolver.}
 \declaremodule{builtin}{macdnr}
 
 \modulesynopsis{Interfaces to the Macintosh Domain Name Resolver.}