Merge branch 'ah/doc-filter-branch-export-env'

Docfix. * ah/doc-filter-branch-export-env: doc: filter-branch does not require re-export of vars

Junio C Hamano committed Jun 4, 2017 at 09:55 UTC 5160b821e9fe2804dde9451e4aae87d3c5af9754

No changes.