File mtpaint-3.31-xdg-open.patch of Package mtpaint

--- src/png.c.orig	2009-02-05 11:39:16.000000000 +0100
+++ src/png.c	2009-07-11 00:57:55.000000000 +0200
@@ -4480,9 +4480,9 @@
 
 #else /* Linux */
 
-#define HANDBOOK_BROWSER "firefox"
-#define HANDBOOK_LOCATION "/usr/doc/mtpaint/index.html"
-#define HANDBOOK_LOCATION2 "/usr/share/doc/mtpaint/index.html"
+#define HANDBOOK_BROWSER "xdg-open"
+#define HANDBOOK_LOCATION "/usr/share/doc/packages/mtpaint-handbook/index.html"
+#define HANDBOOK_LOCATION2 "/usr/share/doc/packages/mtpaint/index.html"
 
 #include "spawn.h"