tox -e docs fails with "WARNING: RSVG converter command 'rsvg-convert' cannot be run. Check the rsvg_converter_bin setting"

[Matt Riedemann]

Since this change:

https://github.com/openstack/nova/commit/16b9486bf7e91bfd5dc48297cee9f54b49156c93

Local docs builds fail if you don't have librsvg2-bin installed for the sphinxcontrib-svg2pdfconverter dependency (I'm on Ubuntu 18.04). We should include that in bindep.txt.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/683003

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/683003
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=9ae92e3f9841bd76a8327309580c19280f3d52b8
Submitter: Zuul
Branch: master

commit 9ae92e3f9841bd76a8327309580c19280f3d52b8
Author: Matt Riedemann <email address hidden>
Date: Wed Sep 18 17:25:49 2019 -0400

    Add librsvg2* to bindep

    I3aaea1d15a357f550f529beaa84fb1a1a7748358 added the docs
    build requirement on sphinxcontrib-svg2pdfconverter which
    needs the native rsvg-convert command. This change adds
    the native package that provides that command to bindep.txt.

    Change-Id: I064a1f33902405c3db699a46feeb93397fc3b038
    Closes-Bug: #1844583

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/nova 20.0.0.0rc1 release candidate.