http://bugs.gnu.org/16848
Thanks. This sounds like Bug#16848, which was fixed in February after
the latest diffutils release. Can you build a copy of diffutils from
the git repository and try it out? Or perhaps you can cherry-pick the
patches:
- [bug-diffutils] bug#17492: diff handles moved text poorly; sh... Scott McPeak
- [bug-diffutils] bug#17492: bug#17492: diff handles moved... Paul Eggert
