Update verbiage associated to the new 'has-privacy-review'/'needs-privacy-review' Trac keywords

[garrett-eclipse]

Hello,

With #3896 two new Trac keywords were implemented for the core privacy team; 'needs-privacy-review' and 'has-privacy-review'.

After #3896 was committed the keywords were discussed on Slack in #core-privacy and associated verbiage discussed and decided for inclusion on the Trac Workflow Keywords page;
​https://make.wordpress.org/core/handbook/contribute/trac/keywords/
*I've just updated this page to include these new keywords w/ the approved verbiage.

The agreed upon verbiage was different than what was committed in #3896 so I'm opening this ticket to correct that.

Agreed verbiage is found here on Slack;
​https://wordpress.slack.com/archives/C9695RJBW/p1548271505311700

Quoting;

`Input is needed from the core privacy team with regards to the privacy implications of the suggested changes.`?
`Input has been given from the core privacy team reviewing the privacy implications of the suggested changes.`?

Attaching patch w/ changes.

Cheers

[garrett-eclipse]

Updated verbiage for privacy keywords to match official verbiage agreed upon during #core-privacy office hours

[garrett-eclipse]

Uploaded 4260.diff with official verbiage for the keywords.

[SergeyBiryukov]

In 8453:

Trac: Update verbiage for has-privacy-review and needs-privacy-review keywords.

Props garrett-eclipse.
Fixes #4260.

[garrett-eclipse]

Thanks @SergeyBiryukov