Re: [RFH] xdiff shows trivially redundant diff.

Davide Libenzi [off-list ref] writes:

On Sun, 2 Apr 2006, Junio C Hamano wrote:

quoted

$ git diff-tree -p 52e8a6^2 52d8a6 -- git-fetch.sh

shows a change that trivially is redundant, like this:

   diff --git a/git-fetch.sh b/git-fetch.sh
   index b4325d9..de4f011 100755
   --- a/git-fetch.sh
   +++ b/git-fetch.sh
   @@ -320,7 +320,7 @@ fetch_main () {
..
Notice the first '-' and '+' lines of second hunk are identical?

There is another interesting thing.  This is running diff
between 52e8a6^2 and 52d8a6 blobs, but if I change them slightly
so that the first hunk is not different, then this anomaly
disappears.

Could you send me the two files that creates the above diff?

I should have tried your pristine xdiff code myself before
bothering you, but I haven't (sorry).

The problem is from the "stripped down" version we use in git,
so you may or may not see the problem in your version.  Attached
are the files.