[PATCH 1/3] man: document external subcommand handling in notmuch(1)

[David Bremner]

Jani Nikula <jani at nikula.org> writes:

> The documentation for this was overlooked when adding the subcommand
> handling. This seems like the proper place for it.

I have applied this series to master and release. Note that there were
some conflicts with Mark's NEWS patch so please double check my
conflict resolution.

d