Use Sphinx 1.5 warning-is-error

With pbr 2.0 and Sphinx 1.5, the setting for treat sphinx warnings as
errors is setting warning-is-error in build_sphinx section. Migrate
the setting from the old warnerrors one.

Fix problems found:
* Duplicate labels (rename wrong faq entries, rename unused drivers
  entries)
* Add api/autoindex.rst as hidden to the index so that we do not get a
  warning. The modindex includes the same content, so no need to show
  this.
* Add releasenotes/index.rst, webapi/v1.rst, user-guide, and install-guide.rst
  to hidden index since they're not listed in index on purpose, so sphinx
  will not warn that they do not appear in a toc
* Add deploy/radosgw to index
* ignore app.add_directiv warning
* Fix reference to user-guide to use proper markup so that Sphinx knows
  the user-guide is referenced.

Change-Id: I00d249229d4d31ba36d4393d60847fdb1513a744

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.cfg b/setup.cfg
index eba73c353..587110225 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -153,12 +153,12 @@ autodoc_exclude_modules =
     ironic.db.sqlalchemy.alembic.env
     ironic.db.sqlalchemy.alembic.versions.*
     ironic_tempest_plugin.*
-warnerrors = True
 
 [build_sphinx]
 all_files = 1
 build-dir = doc/build
 source-dir = doc/source
+warning-is-error = 1
 
 [egg_info]
 tag_build =