Merge branch 'rs/unpack-trees-reduce-file-scope-global'

Code cleanup. * rs/unpack-trees-reduce-file-scope-global: unpack-trees: pass checkout state explicitly to check_updates()

Junio C Hamano committed Sep 21, 2016 at 15:15 UTC e9c6d3dcc2112f0d6190681211ea76b714fcd704

No changes.