Fix expression-not-assigned pylint warnings in webkitpy.

Fix expression-not-assigned pylint warnings in webkitpy.

This removes unnecessary commas from a couple of lines;
it should have no effect on behavior.

BUG=643937
Committed: https://crrev.com/91b7287623169fc5e9fefa6e310c2c6a3ef35ad0
Cr-Commit-Position: refs/heads/master@{#432318}

[qyearsley, 2016-11-14 00:27:42]

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

[commit-bot: I haz the power, 2016-11-14 00:27:50]

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, 2016-11-14 01:37:05]

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

[commit-bot: I haz the power, 2016-11-14 01:37:05]

Dry run: This issue passed the CQ dry run.

[qyearsley, 2016-11-14 21:19:09]

qyearsley@chromium.org changed reviewers:
+ jeffcarp@chromium.org

[jeffcarp, 2016-11-15 19:14:01]

lgtm

[qyearsley, 2016-11-15 22:13:32]

The CQ bit was checked by qyearsley@chromium.org

[commit-bot: I haz the power, 2016-11-15 22:14:19]

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, 2016-11-15 22:44:04]

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

[commit-bot: I haz the power, 2016-11-15 22:44:05]

Try jobs failed on following builders:
  cast_shell_linux on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/cast_shell_linu...)

[qyearsley, 2016-11-16 00:16:29]

The CQ bit was checked by qyearsley@chromium.org

[commit-bot: I haz the power, 2016-11-16 00:17:20]

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, 2016-11-16 00:34:48]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-16 00:37:29]

Description was changed from

==========
Fix expression-not-assigned pylint warnings in webkitpy.

This removes unnecessary commas from a couple of lines;
it should have no effect on behavior.

BUG=643937
==========

to

==========
Fix expression-not-assigned pylint warnings in webkitpy.

This removes unnecessary commas from a couple of lines;
it should have no effect on behavior.

BUG=643937

Committed: https://crrev.com/91b7287623169fc5e9fefa6e310c2c6a3ef35ad0
Cr-Commit-Position: refs/heads/master@{#432318}
==========

[commit-bot: I haz the power, 2016-11-16 00:37:30]

Patchset 1 (id:??) landed as
https://crrev.com/91b7287623169fc5e9fefa6e310c2c6a3ef35ad0
Cr-Commit-Position: refs/heads/master@{#432318}