[PATCH 1/5] test: make fallback to duplicate test more robust.

[David Bremner]

David Bremner <david at tethera.net> writes:

> The original intent of this test was to verify that notmuch show was
> not crashing when the first file (where headers are being read from)
> was deleted. Run the output through some sanitization so that as we
> add and delete copies we don't have to update this test.

Series pushed.

d