[notmuch] JSON output as default [was: Re: [PATCH] Add an "--output=(json|text|)" command-line option...]

[Sebastian Spaeth]

> I definitely want to be able to pipe single-field lists coming from
> notmuch to grep, xargs, shell for loops, etc. without having to decode
> JSON.

While I would love to see JSON (even by default), I agree. If I just
want to code up a notmuch-based address book with sth like:

notmuch show to:Diana --output=to --sort=relevance --limit=20

just getting back a plain list of mail addresses is the easiest to handle.