t / t5100 / info0011on commit rebase -i: do not invent onelines when expanding/collapsing SHA-1s (1f4044a)
   1Author: A U Thor
   2Email: a.u.thor@example.com
   3Subject: Xyzzy
   4Date: Fri, 8 Aug 2008 13:08:37 +0200 (CEST)
   5