i#1941 vpshufb: Give vpshufb 3 operands, not 2

Commit log for first patchset:
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i#1941 vpshufb: Give vpshufb 3 operands, not 2

Fixes #1941
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[bruening, 2016-06-02 17:01:49]

Thank you for the bug report and patch.  I do not see rocallahan at gmail as
having signed the CLA (per
https://github.com/DynamoRIO/dynamorio/wiki/Contributing) -- perhaps you used a
different name?

[rocallahan, 2016-06-02 23:47:34]

On 2016/06/02 17:01:49, bruening wrote:
> Thank you for the bug report and patch.  I do not see rocallahan at gmail as
> having signed the CLA (per
> https://github.com/DynamoRIO/dynamorio/wiki/Contributing) -- perhaps you used
a
> different name?

No, I just completely failed to do that. Done.

[bruening, 2016-06-03 15:54:42]

LGTM

I can add you as a committer and you can commit this directly, if you're able to
run the test suite
(https://github.com/DynamoRIO/dynamorio/wiki/Test-Suite#pre-commit-test-suite)?

[rocallahan, 2016-06-03 22:31:02]

I haven't tried running the precommit test suite yet. I'll do that and then get
back to you. It'll be a few days since we're in a long weekend here.

[rocallahan, 2016-06-04 22:37:55]

Ah, I realize now that Commit-Criteria requires tests to be run on Windows. I
don't have a Windows setup so it'll be a lot more work for me to get that up and
running. Can I opt out of that and ask you to commit for me?

[bruening, 2016-06-07 18:27:52]

On 2016/06/04 22:37:55, rocallahan wrote:
> Ah, I realize now that Commit-Criteria requires tests to be run on Windows. I
> don't have a Windows setup so it'll be a lot more work for me to get that up
and
> running. Can I opt out of that and ask you to commit for me?

OK, will do.