Repository: googleapis/python-bigquery

Issue:
Sphinx 3.2.0 breaks 'docs' build
From [this Kokoro build](https://source.cloud.google.com/results/invocations/a4596b14-7553-4ab1-ab07-c4817ea27796/targets/cloud-devrel%2Fclient-libraries%2Fpython%2Fgoogleapis%2Fpython-bigquery%2Fpresubmit%2Fpresubmit/log):

```python
Traceback (most recent call last):
  File "/tmpfs/src/github/python-bigquery/.nox/docs/lib/python3.8/site-packages/sphinx/cmd/build.py", line 280, in build_main
    app.build(args.force_all, filenames)
  File "/tmpfs/src/github/python-bigquery/.nox/docs/lib/python3.8/site-packages/sphinx/application.py", line 348, in build
    self.builder.build_update()
  File "/tmpfs/src/github/python-bigquery/.nox/docs/lib/python3.8/site-packages/sphinx/builders/__init__.py", line 297, in build_update
    self.build(to_build,
  File "/tmpfs/src/github/python-bigquery/.nox/docs/lib/python3.8/site-packages/sphinx/builders/__init__.py", line 311, in build
    updated_docnames = set(self.read())
  File "/usr/local/lib/python3.8/contextlib.py", line 120, in __exit__
    next(self.gen)
  File "/tmpfs/src/github/python-bigquery/.nox/docs/lib/python3.8/site-packages/sphinx/util/logging.py", line 213, in pending_warnings
    memhandler.flushTo(logger)
  File "/tmpfs/src/github/python-bigquery/.nox/docs/lib/python3.8/site-packages/sphinx/util/logging.py", line 178, in flushTo
    logger.handle(record)
  File "/usr/local/lib/python3.8/logging/__init__.py", line 1587, in handle
    self.callHandlers(record)
  File "/usr/local/lib/python3.8/logging/__init__.py", line 1649, in callHandlers
    hdlr.handle(record)
  File "/usr/local/lib/python3.8/logging/__init__.py", line 946, in handle
    rv = self.filter(record)
  File "/usr/local/lib/python3.8/logging/__init__.py", line 807, in filter
    result = f.filter(record)
  File "/tmpfs/src/github/python-bigquery/.nox/docs/lib/python3.8/site-packages/sphinx/util/logging.py", line 421, in filter
    raise exc
sphinx.errors.SphinxWarning: /tmpfs/src/github/python-bigquery/google/cloud/bigquery/query.py:docstring of google.cloud.bigquery.query.ScalarQueryParameter:15:Field list ends without a blank line; unexpected unindent.

Warning, treated as error:
/tmpfs/src/github/python-bigquery/google/cloud/bigquery/query.py:docstring of google.cloud.bigquery.query.ScalarQueryParameter:15:Field list ends without a blank line; unexpected unindent.
```


Discussion:

Resolving patch:
diff --git a/google/cloud/bigquery/query.py b/google/cloud/bigquery/query.py
--- a/google/cloud/bigquery/query.py
+++ b/google/cloud/bigquery/query.py
@@ -86,8 +86,8 @@ class ScalarQueryParameter(_AbstractQueryParameter):
             'FLOAT64', 'NUMERIC', 'BOOL', 'TIMESTAMP', 'DATETIME', or
             'DATE'.
 
-        value (Union[str, int, float, decimal.Decimal, bool,
-                 datetime.datetime, datetime.date]): The scalar parameter value.
+        value (Union[str, int, float, decimal.Decimal, bool, datetime.datetime, datetime.date]):
+            The scalar parameter value.
     """
 
     def __init__(self, name, type_, value):
@@ -105,9 +105,8 @@ def positional(cls, type_, value):
                 'FLOAT64', 'NUMERIC', 'BOOL', 'TIMESTAMP', 'DATETIME', or
                 'DATE'.
 
-            value (Union[str, int, float, decimal.Decimal, bool,
-                     datetime.datetime,
-                     datetime.date]): The scalar parameter value.
+            value (Union[str, int, float, decimal.Decimal, bool, datetime.datetime, datetime.date]):
+                The scalar parameter value.
 
         Returns:
             google.cloud.bigquery.query.ScalarQueryParameter: Instance without name


Test patch: