set warning-is-error for documentation build

Change-Id: I285a95b9a2bd9d0f9f02896b44757c582c6d2c56
Signed-off-by: Doug Hellmann <doug@doughellmann.com>

glance_store/_drivers/cinder.py

@@ -603,7 +603,7 @@ class Store(glance_store.driver.Store):
         :param location: `glance_store.location.Location` object, supplied
                         from glance_store.location.get_location_from_uri()
         :raises: `glance_store.exceptions.NotFound` if image does not exist
-        :rtype int
+        :rtype: int
         """
 
         loc = location.store_location

glance_store/_drivers/filesystem.py

@@ -565,7 +565,7 @@ class Store(glance_store.driver.Store):
         :param location: `glance_store.location.Location` object, supplied
                         from glance_store.location.get_location_from_uri()
         :raises: `glance_store.exceptions.NotFound` if image does not exist
-        :rtype int
+        :rtype: int
         """
         filepath, filesize = self._resolve_location(location)
         msg = _("Found image at %s.") % filepath

glance_store/_drivers/sheepdog.py

@@ -328,7 +328,7 @@ class Store(glance_store.driver.Store):
         :param location: `glance_store.location.Location` object, supplied
                         from glance_store.location.get_location_from_uri()
         :raises: `glance_store.exceptions.NotFound` if image does not exist
-        :param rtype: int
+        :rtype: int
         """
 
         loc = location.store_location

glance_store/_drivers/swift/store.py

@@ -1099,7 +1099,7 @@ class BaseStore(driver.Store):
         :param auth_token: auth token
         :param storage_url: swift storage url
         :return: swiftclient connection that allows to request container and
-        others
+                 others
         """
         # initialize a connection
         return swiftclient.Connection(

setup.cfg

@@ -68,13 +68,13 @@ cinder =
 source-dir = doc/source
 build-dir = doc/build
 all_files = 1
+warning-is-error = 1
 
 [pbr]
 autodoc_index_modules = True
 api_doc_dir = reference/api
 autodoc_exclude_modules =
   glance_store.tests.*
-warnerrors = True
 
 [upload_sphinx]
 upload-dir = doc/build/html