Fake GitDiff Algorithm is super slow and can't disable the fallback to it.

[roncRonc]

When comparing two very long strings, there is an automatic fallback to the fake gitDiff algorithm.
My server stops responding to requests for ~60+ seconds. Please (if you can) add the ability to disable the automatic fallback.
I mean, don't compute any diff and skip it in can the real gitDiff fails for some reason.

[roncRonc]

I meant:
[1] Add the ability to set by flag if I want this automatic fallback to happen or not.
[2] Add the ability to limit the execution time of gitDiff operation. I mean, configure that after X milliseconds - reject.

Thank you!

[danday74]

I don't have time to implement this but if you raise a PR and the unit tests continue to pass and coverage remains at 100% then I will merge it.

One question, are the necessary CLI commands available? The documentation states what CLI commands are required - I think the key one is "printf" off the top of my head - if the required CLI commands are available then the fallback should never happen