Update git.go

[R-omk]

fix bug with auto line endings, which leads to uncleared status of repo
https://help.github.com/articles/dealing-with-line-endings/#per-repository-settings

[AppVeyorBot]

✅ Build vcs build-87.master completed (commit 96c76f96aa by @R-omk)

[mattfarina]

@R-omk thanks for the PR. If you rebase from master the CI error should be gone.

Can you fill me in a little on your use case for this? Is this for windows cases where core.autocrlf isn't set to true?

[R-omk]

@mattfarina just try

cd /tmp 
git clone https://github.com/kataras/iris.git
cd iris
git checkout v8.4.0
git status

it leads to unclear state of repository and prevent next checkout without force flag.

[AppVeyorBot]

✅ Build vcs build-93.master completed (commit eb962edd39 by @R-omk)