[PATCH 1/6] cli: add --duplicate=N option to notmuch search

[David Bremner]

Jani Nikula <jani at nikula.org> writes:

> Effective with --output=files, output the Nth filename associated with
> each message matching the query (N is 0-based). If N is equal to or
> greater than the number of files associated with the message, don't
> print anything.

I guess this is a proverbial bikeshed, but 1 based indexing feels more
natural to me here.