<!-- BEGIN tour.diff -->
<screen><prompt>$</prompt> <userinput>hg diff</userinput>
diff -r 2278160e78d4 hello.c
--- a/hello.c	Sat Aug 16 22:16:53 2008 +0200
+++ b/hello.c	Fri Jun 05 15:51:51 2009 +0000
@@ -8,5 +8,6 @@
 int main(int argc, char **argv)
 {
 	printf("ciao, mondo!\");
+	printf("ancora ciao!\n");
 	return 0;
 }
</screen>
<!-- END tour.diff -->