Make identity header naming consistent

[williammartin]

Another small fixup around the Originating-Identity header. Might seem trivial but as I got to this section I wasn't initially sure which was the "correct" version, until I got to later sections where the hyphen is repeated. Might just help to clarify this by being consistent.

[cfdreddbot]

Hey williammartin!

Thanks for submitting this pull request! I'm here to inform the recipients of the pull request that you and the commit authors have already signed the CLA.

[duglin]

should we be really explicit and make it X-Broker-API-Originating-Identity ?

[williammartin]

Yeh, I was wondering whether we should do that or have a section on headers in the specification that they all start with X-Broker-API, then we could miss out the prefix in other places. Happy to fix the PR with either.

[duglin]

For now, let's just take the easy path and use the actual header name

[williammartin]

Cool, fixed up.

[duglin]

Speedy! Thanks! LGTM

[pmorie]

LGTM

[duglin]

one more review needed