Port to GTK+2. From Gentoo.

--- utility.c.orig	Fri Jan 29 15:43:48 2010
+++ utility.c	Fri Jan 29 15:44:00 2010
@@ -422,7 +422,7 @@ unsigned char *sixwords(unsigned char *message, char *
 			words[extract(message, 33, 11)],
 			words[extract(message, 44, 11)],
 			words[extract(message, 55, 11)],
-			(newline == 1) ? "\n" : NULL);
+			(newline == 1) ? "\n" : "");
 
 	return response;