fix auto crlf issue

[pushkine]

No description provided.

[benmccann]

Thanks for investigating running on Windows @pushkine. Can you add a bit of description to the PR?

The CI does run on Windows and all the tests pass on Windows, so I'm wondering why this is necessary.

I saw at one point in your earlier PR that you removed the git config --global core.autocrlf false line:

svelte/.github/workflows/ci.yml

Line 11 in f46b38a

- run: git config --global core.autocrlf false

How does that tie in? If you do that while checking out locally does it make the tests pass on Windows for you? (not that I'm suggesting that would necessarily be the best long-term solution, but I'm just trying to understand the issue you're running into)

[pushkine]

Basically hundreds of tests will fail on windows machines unless you clone the repository with the core.autocrlf false parameter or something, I know it's written about somewhere in a contributing FAQ/WIKI but I can't find it anymore
This pr removes \r from every test & from css hashing so that every platform produces the same output by default
I believe --global core.autocrlf false can be removed, I just don't know anything about that stuff so I didn't mess with it

[tivac]

Instructions are in the readme.

https://github.com/sveltejs/svelte/blob/master/README.md#L37-L40

[Conduitry]

The note in the readme and the core.autocrlf=false in the CI job were both workarounds so we didn't have to deal with normalizing these line endings during tests. If these changes address those problems, that sounds great - but I think we should remove the special Windows handling in the GitHub actions config (to make sure this continues to work as intended) and remove the now-unneeded instructions from the readme.

[pushkine]

Done, let me know if there's anything else