[ghex] Add missing include <libgnome/gnome-help.h> to avoid implicit declaration

[Andre Klapper <aklapper src gnome org>]

commit 09b098b8801b0dbabd3cff48d624ba7e4a3eeefb
Author: Andre Klapper <a9016009 gmx de>
Date:   Wed Jan 27 20:51:06 2010 +0100

    Add missing include <libgnome/gnome-help.h> to avoid implicit declaration

 src/preferences.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/preferences.c b/src/preferences.c
index 622d039..b0e10d7 100644
--- a/src/preferences.c
+++ b/src/preferences.c
@@ -26,6 +26,7 @@
 #endif /* HAVE_CONFIG_H */
 
 #include <gtk/gtk.h>
+#include <libgnome/gnome-help.h>
 
 #include <libgnomeprintui/gnome-font-dialog.h>