Thanks Niels Thykier and Jens Reyer.

The definition says when it must be used.

Policy calls "unofficial targets" "additional targets"

In this section, support for the Rules-Requires-Root field, and support
for values of that field, are both under discussion.  Be more explicit
when referring to these distinct things, for readability.

Niels Thykier authored Dec 29, 2017 and Sean Whitton committed May 13, 2018

Signed-off-by: Niels Thykier <niels@thykier.net>

Thanks, Niels Thykier.

    Wording: Sean Whitton <spwhitton@spwhitton.name>
    Seconded: Simon McVittie <smcv@debian.org>
    Seconded: Holger Levsen <holger@layer-acht.org>
    Closes: #881431

Jonathan Nieder authored Mar 05, 2018 and Sean Whitton committed Mar 06, 2018

Reported-by: Paul Wise <pabs@debian.org>
Closes: #892142

    Wording: Sean Whitton <spwhitton@spwhitton.name>
    Seconded: Holger Levsen <holger@layer-acht.org>
    Seconded: Gunnar Wolf <gwolf@debian.org>
    Closes: #742364

    Wording: Santiago Vila <sanvila@unex.es>
    Seconded: Don Armstrong <don@debian.org>
    Seconded: Ian Jackson <ijackson@chiark.greenend.org.uk>
    Seconded: Russ Allbery <rra@debian.org>
    Closes: #299007

    Wording: Helmut Grohne <helmut@subdivi.de>
    Seconded: Holger Levsen <holger@layer-acht.org>
    Seconded: Niels Thykier <niels@thykier.net>
    Closes: #515856