Fix some typos in comments

[findnature]

No description provided.

[cla-bot]

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[findnature]

We require contributors to sign our Contributor License Agreement. In order for us to review and merge your code, please sign the linked documents below to get yourself added. https://na3.docusign.net/Member/PowerFormSigning.aspx?PowerFormId=b15c81cc-b5ea-42a6-9107-3992526f2898&env=na3&acct=6e152afc-6284-44af-a4c1-d8ef291db402&v=2

Signed

[hkalodner]

@cla-bot check

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!

[CLAassistant]

All committers have signed the CLA.

[findnature]

Anything need I to do? Should I resolve the conflict?