Merge branch 'mb/fetch-call-a-non-branch-a-ref'

Merge branch 'mb/fetch-call-a-non-branch-a-ref'

The report from "git fetch" said "new branch" even for a non branch
ref.

By Marc Branchaud
* mb/fetch-call-a-non-branch-a-ref:
  fetch: describe new refs based on where it came from
  fetch: Give remote_ref to update_local_ref() as well