Merge "turn on warning-is-error in doc build"

doc/source/conf.py

@@ -85,6 +85,6 @@ latex_documents = [
 
 intersphinx_mapping = {
     'python': ('https://docs.python.org/', None),
-    'osloconfig': ('http://docs.openstack.org/developer/oslo.config/', None),
+    'osloconfig': ('http://docs.openstack.org/oslo.config/latest/', None),
     'dogpilecache': ('https://dogpilecache.readthedocs.io/en/latest/', None),
 }

setup.cfg

@@ -41,7 +41,6 @@ etcd3gw =
   etcd3gw>=0.1.0 # Apache-2.0
 
 [pbr]
-warnerrors = true
 autodoc_tree_index_modules = True
 api_doc_dir = reference/api
 
@@ -49,6 +48,7 @@ api_doc_dir = reference/api
 source-dir = doc/source
 build-dir = doc/build
 all_files = 1
+warning-is-error = 1
 
 [upload_sphinx]
 upload-dir = doc/build/html