diff -r ef44f62cb8b9 -r 22c441f5adf9 src/newgrf_canal.cpp
--- a/src/newgrf_canal.cpp	Mon May 05 12:35:38 2008 +0000
+++ b/src/newgrf_canal.cpp	Wed May 07 21:09:51 2008 +0000
@@ -1,5 +1,7 @@
 /* $Id$ */
 
+/** @file newgrf_canal.cpp Implementation of NewGRF canals. */
+
 #include "stdafx.h"
 #include "openttd.h"
 #include "variables.h"