[heap] Fix a formatting bug in --trace-incremental-marking.

[heap] Fix a formatting bug in --trace-incremental-marking.

BUG=

Committed: https://crrev.com/212624b7570cd1c1cfad7cf958203b05af961637
Cr-Commit-Position: refs/heads/master@{#39278}

[ulan, 2016-09-08 11:06:32]

ulan@chromium.org changed reviewers:
+ mlippautz@chromium.org

[ulan, 2016-09-08 11:06:33]

ptal

[Michael Lippautz, 2016-09-08 11:17:54]

lgtm

[ulan, 2016-09-08 12:08:04]

The CQ bit was checked by ulan@chromium.org

[commit-bot: I haz the power, 2016-09-08 12:08:07]

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, 2016-09-08 12:36:14]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-08 12:36:42]

Description was changed from

==========
[heap] Fix a formatting bug in --trace-incremental-marking.

BUG=
==========

to

==========
[heap] Fix a formatting bug in --trace-incremental-marking.

BUG=

Committed: https://crrev.com/212624b7570cd1c1cfad7cf958203b05af961637
Cr-Commit-Position: refs/heads/master@{#39278}
==========

[commit-bot: I haz the power, 2016-09-08 12:36:43]

Patchset 2 (id:??) landed as
https://crrev.com/212624b7570cd1c1cfad7cf958203b05af961637
Cr-Commit-Position: refs/heads/master@{#39278}

[ulan, 2016-09-09 11:35:10]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.chromium.org/2323293002/ by ulan@chromium.org.

The reason for reverting is: Revert to check if this is causing perf regressions
in crbug.com/645411.