[lint] Fix lint to not raise an exception at the end.

[lint] Fix lint to not raise an exception at the end.

Also whitelist 'ast', which is harmless and used in some repos.

R=dnj@chromium.org, phajdan.jr@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2845023002
Committed: https://github.com/luci/recipes-py/commit/11737a0978310326dcf0607c7532ade24f696c3d

[iannucci, 2017-04-27 07:45:44]

The CQ bit was checked by iannucci@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-04-27 07:45:52]

Dry run: CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-27 07:49:42]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-04-27 07:49:42]

Dry run: This issue passed the CQ dry run.

[dnj, 2017-04-27 17:21:22]

lgtm

[iannucci, 2017-04-29 19:43:42]

The CQ bit was checked by iannucci@chromium.org

[iannucci, 2017-04-29 19:43:42]

The patchset sent to the CQ was uploaded after l-g-t-m from dnj@chromium.org
Link to the patchset: https://codereview.chromium.org/2845023002/#ps20001
(title: "rebase")

[commit-bot: I haz the power, 2017-04-29 19:43:49]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-29 19:46:39]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1493495022296040,
"parent_rev": "974abeac59bf52bfc6e3e9cee01fa729156154f4", "commit_rev":
"11737a0978310326dcf0607c7532ade24f696c3d"}

[commit-bot: I haz the power, 2017-04-29 19:46:44]

Description was changed from

==========
[lint] Fix lint to not raise an exception at the end.

Also whitelist 'ast', which is harmless and used in some repos.

R=dnj@chromium.org, phajdan.jr@chromium.org
BUG=
==========

to

==========
[lint] Fix lint to not raise an exception at the end.

Also whitelist 'ast', which is harmless and used in some repos.

R=dnj@chromium.org, phajdan.jr@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2845023002
Committed:
https://github.com/luci/recipes-py/commit/11737a0978310326dcf0607c7532ade24f6...
==========

[commit-bot: I haz the power, 2017-04-29 19:46:45]

Committed patchset #2 (id:20001) as
https://github.com/luci/recipes-py/commit/11737a0978310326dcf0607c7532ade24f6...