add git dependency to github portgroup?

[Joshua Root]

On 2017-11-21 04:02 , Ken Cunningham wrote:
> A recent commit of Dave's made me wonder if should we add a callback dependency for something like
> 
> depends_build-append    bin:git:git
> 
> to the github portgroup?
> 
> I looked in there, expecting to see one, but didn't.
No, I don't see why that would be needed. Many ports using the github
portgroup don't use git at all, and those that do usually use it for
fetching only.

- Josh