I'm quite certain that it's the -L option. Let me talk to the system administrator about installing the GNU diffutils -- I'm guessing that it won't be a problem.

Yes, I think that it's the same issue as T4124: Test the capabilities of `diff` better, especially for Solaris, as I just found the -L options in generateRawDiffFromFileContent.

Thanks for the quick feedback. Perhaps it's something unique to my environment because I can reproduce this behavior consistently across multiple repositories.