Merge branch 'tg/t-readme-updates'

Developer doc updates. * tg/t-readme-updates: t/README: document test_cmp_rev t/README: remove mention of adding copyright notices

Junio C Hamano committed Dec 13, 2017 at 13:28 UTC d22512e0191dfceec72fadc6f2ad3690d4f9ca56

No changes.