find_unmapped_histograms.py command-line typo fix

find_unmapped_histograms.py command-line typo fix

Change --exrta_histograms-file option to --extra_histograms-file.

BUG=

Committed: https://crrev.com/a2c26c1771476211098d05952df9fd0324d554d7
Cr-Commit-Position: refs/heads/master@{#416285}

[Adam Rice, 2016-09-02 11:56:19]

ricea@chromium.org changed reviewers:
+ isherman@chromium.org

[Adam Rice, 2016-09-02 11:56:19]

Hopefully nobody is relying on the typo for their workflow.

[Ilya Sherman, 2016-09-02 16:13:59]

The CQ bit was checked by isherman@chromium.org

[Ilya Sherman, 2016-09-02 16:14:00]

lgtm

[commit-bot: I haz the power, 2016-09-02 16:14:20]

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, 2016-09-02 17:03:32]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-02 17:05:49]

Description was changed from

==========
find_unmapped_histograms.py command-line typo fix

Change --exrta_histograms-file option to --extra_histograms-file.

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

to

==========
find_unmapped_histograms.py command-line typo fix

Change --exrta_histograms-file option to --extra_histograms-file.

BUG=

Committed: https://crrev.com/a2c26c1771476211098d05952df9fd0324d554d7
Cr-Commit-Position: refs/heads/master@{#416285}
==========

[commit-bot: I haz the power, 2016-09-02 17:05:50]

Patchset 1 (id:??) landed as
https://crrev.com/a2c26c1771476211098d05952df9fd0324d554d7
Cr-Commit-Position: refs/heads/master@{#416285}