t / t5100 / embed-from.inon commit diff: convert diff_change to struct object_id (94a0097)
   1From 1234567890123456789012345678901234567890 Mon Sep 17 00:00:00 2001
   2From: Email Author <email@example.com>
   3Date: Sun, 25 May 2008 00:38:18 -0700
   4Subject: [PATCH] email subject
   5
   6>From 1234567890123456789012345678901234567890 Mon Sep 17 00:00:00 2001
   7From: Commit Author <commit@example.com>
   8Date: Sat, 13 Sep 2014 21:13:23 -0400
   9Subject: patch subject
  10
  11patch body
  12---
  13patch