[PATCH v2 09/11] parsemail: Add cover letter parsing

[Andy Doan]

On 04/01/2016 09:57 AM, Stephen Finucane wrote:
> Add support for both cover letters and comments on cover letters. This
> works using the following heuristics:
>
> * The message contains a '[0/n]' marker tag in the subject
> * The message is the root message
>
> Signed-off-by: Stephen Finucane <stephen.finucane at intel.com>

Would it be possible to include a test in 
patchwork/tests/test_patchparser.py for this? Given patch 10 adds 
another scenario that needs coverage building up a set of tests to 
assert this logic against seems valuable.