Re: [PATCH v2 7/8] t4124: fix test for non-compliant diff(1)

> Danh Doan <congdanhqx@gmail.com> writes:
> 
> > Hence, if we're going to drop support for system that doesn't
> > understand "diff -u", we're going to:
> > - remove support for those variables:
> >   + GIT_TEST_CMP_USE_COPIED_CONTEXT
> 
> Folks who prefer "-c" even their platforms all are capable of "-u"
> may miss this, but I think that is a very small minority, and they
> would be OK (it is after all only needed when diagnosing test
> failures of our test suite, and by definition, those who are working
> to improve Git would know how to read "-u" output).
> 
> >   + GIT_TEST_CMP
> 
> I am not sure why you need to drop this one?  This is more about
> switching between "diff" and "cmp", and there are reasons why folks
> prefer latter especially when they are not debugging the tests.