Downgrade info log message to debug

[stanhu]

We upgraded to chef-zero 4.7.0, and users have been confused by all the POST/PUT messages on the console. It makes it look like we're sending sensitive information to our servers.

Closes #215

[chef-supermarket]

Hi. I am an automated pull request bot named Curry. There are commits in this pull request whose authors are not yet authorized to contribute to Chef Software, Inc. projects or are using a non-GitHub verified email address. To become authorized to contribute, you will need to sign the Contributor License Agreement (CLA) as an individual or on behalf of your company. You can read more on Chef's blog.

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• @stanhu

Please sign the CLA here.

[chef-supermarket]

Hi. Your friendly Curry bot here. Just letting you know that all commit authors have become authorized to contribute. I have added the "Signed CLA" label to this issue so it can easily be found in the future.

[thommay]

Thanks, looks good to me 👍 @stevendanna @chef/client-core

[stevendanna]

👍 This will be a big help for most users.

[varunpalekar]

Must accepted change, create so much problem in long json output in last of chef-zero run