Re: diff --break-rewrites for just a part of a file

Sascha Silbe [off-list ref] writes:

A combination of --break-rewrites and --inter-hunk-context that merges
changes with less than the given number of unchanged lines between them
into a single delete/insert change would be even better. But just
ignoring the unchanged header and footer of a file for --break-rewrites
would already go a long way.

That's interesting.  Break-rewrites as originally designed and
implemented is only about "When the entire file been rewritten
completely, it is easier to read when the diff did not pay any
attention to those accidentally common lines".

We recently had a discussion on tweaking the logic used to merge and
minimize hunks; the topic was about where to start the hunk boundary
for maximum readability when the beginning and end of a hunk can be
shifted around, but this smells like a similar issue.