chore(bigquerydatatransfer): change line breaks in docstrings (via synth)

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Commits in this repo since last synth:
88e060f chore(storage): adjust test assertions to new default timeout (#10251)
fcdc10c chore(bigquery): adjust test assertions to new default timeout (#10222)
79d8e00 fix(translate): add py2 deprecation warning; bump copyright year to 2020; add 3.8 unit tests (via synth) (#9943)
ca7f003 fix(oslogin): add py2 deprecation warning; bump copyright year to 2020; add 3.8 unit tests (via synth) (#10071)
b270311 docs(webrisk): add 2.7 deprecation warning; bump copyright year to 2020; use templated noxfile (via synth) (#10053)
906e5fa feat(spanner): un-deprecate resource name helper functions, add 3.8 tests (via synth) (#10062)
2a86088 feat(monitoring): un-deprecate resource name helpers, add 2.7 sunset warning; bump copyright year to 2020; use templated noxfile (via synth) (#10047)
4d90329 docs(firestore): standardize use of 'required' and 'optional' in docstrings; add py2 deprecation warning; add 3.8 unit tests (via synth) (#10068)
0e75d9e docs(language): change docstring formatting; bump copyright year to 2020 (via synth) (#10234)
c140711 feat(grafeas): add support for upgrade notes; add cpe and last_scan_time to DiscoveryOccurrence; add source_update_time to VulnerabilityNote (via synth) (#10084)
e113605 chore(asset): bump copyright year to 2020, tweak docstring formatting (via synth) (#10223)

Log from Synthtool

synthtool > Executing /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:19e945954fc960a4bdfee6cb34695898ab21a8cf0bac063ee39b91f00a1faec8
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/cloud/bigquery/datatransfer/artman_bigquerydatatransfer.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/bigquerydatatransfer-v1.
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/bigquery/datatransfer/v1/transfer.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/bigquerydatatransfer-v1/google/cloud/bigquery_datatransfer_v1/proto/transfer.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/bigquery/datatransfer/v1/datatransfer.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/bigquerydatatransfer-v1/google/cloud/bigquery_datatransfer_v1/proto/datatransfer.proto
synthtool > Placed proto files into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/bigquerydatatransfer-v1/google/cloud/bigquery_datatransfer_v1/proto.
synthtool > Replaced 'from google.cloud.bigquery.datatransfer_v1.proto' in google/cloud/bigquery_datatransfer_v1/proto/datatransfer_pb2.py.
synthtool > Replaced 'from google.cloud.bigquery.datatransfer_v1.proto' in google/cloud/bigquery_datatransfer_v1/proto/datatransfer_pb2_grpc.py.
synthtool > Replaced 'google-cloud-bigquerydatatransfer' in google/cloud/bigquery_datatransfer_v1/gapic/data_transfer_service_client.py.
synthtool > Replaced 'import google.api_core.gapic_v1.method\n' in google/cloud/bigquery_datatransfer_v1/gapic/data_transfer_service_client.py.
.coveragerc
.flake8
MANIFEST.in
docs/_static/custom.css
docs/_templates/layout.html
noxfile.py.j2
setup.cfg
Running session blacken
Creating virtual environment (virtualenv) using python3.6 in .nox/blacken
pip install black==19.3b0
black docs google tests noxfile.py setup.py samples
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer_v1/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer_v1/gapic/enums.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer_v1/gapic/data_transfer_service_client_config.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer_v1/gapic/transports/data_transfer_service_grpc_transport.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer_v1/proto/datatransfer_pb2_grpc.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer_v1/gapic/data_transfer_service_client.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer_v1/proto/transfer_pb2_grpc.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer_v1/types.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/noxfile.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/tests/system/gapic/v1/test_system_data_transfer_service_v1.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/tests/unit/gapic/v1/test_data_transfer_service_client_v1.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer_v1/proto/transfer_pb2.py
reformatted /tmpfs/src/git/autosynth/working_repo/bigquery_datatransfer/google/cloud/bigquery_datatransfer_v1/proto/datatransfer_pb2.py
All done! ✨ 🍰 ✨
16 files reformatted, 12 files left unchanged.
Session blacken was successful.
synthtool > Wrote metadata to synth.metadata.