tests/test-debugindexdot.out

hgweb: Respond with HTTP 403 for disabled archive types instead of 404

This makes it easier for clients/users to distinct between supported
but disabled and unsupported archive types.

created new head
digraph G {
	-1 -> 0
	0 -> 1
	0 -> 2
	2 -> 3
	1 -> 3
}