Fix compilation error on gcc 4.8.5 on s390x

Fix compilation error on gcc 4.8.5 on s390x

This fixes "error: array subscript is below array bounds" error
message generated by gcc 4.8.5

R=mvstanton@chromium.org, bmeurer@chromium.org
BUG=

Committed: https://crrev.com/d8792ab02c05d14d5577e2e5af3a8aff53ec2906
Cr-Commit-Position: refs/heads/master@{#39086}

[john.yan, 2016-08-31 19:35:43]

PTAL

[john.yan, 2016-08-31 19:35:47]

The CQ bit was checked by jyan@ca.ibm.com to run a CQ dry run

[commit-bot: I haz the power, 2016-08-31 19:35:51]

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, 2016-08-31 20:13:10]

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

[commit-bot: I haz the power, 2016-08-31 20:13:12]

Dry run: This issue passed the CQ dry run.

[Benedikt Meurer, 2016-09-01 03:45:20]

Thanks, LGTM.

[mvstanton, 2016-09-01 07:04:31]

yes, thanks! LGTM

[john.yan, 2016-09-01 13:28:08]

The CQ bit was checked by jyan@ca.ibm.com

[commit-bot: I haz the power, 2016-09-01 13:28:19]

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, 2016-09-01 13:30:19]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-01 13:30:59]

Description was changed from

==========
Fix compilation error on gcc 4.8.5 on s390x

This fixes "error: array subscript is below array bounds" error
message generated by gcc 4.8.5

R=mvstanton@chromium.org, bmeurer@chromium.org
BUG=
==========

to

==========
Fix compilation error on gcc 4.8.5 on s390x

This fixes "error: array subscript is below array bounds" error
message generated by gcc 4.8.5

R=mvstanton@chromium.org, bmeurer@chromium.org
BUG=

Committed: https://crrev.com/d8792ab02c05d14d5577e2e5af3a8aff53ec2906
Cr-Commit-Position: refs/heads/master@{#39086}
==========

[commit-bot: I haz the power, 2016-09-01 13:31:00]

Patchset 1 (id:??) landed as
https://crrev.com/d8792ab02c05d14d5577e2e5af3a8aff53ec2906
Cr-Commit-Position: refs/heads/master@{#39086}