lf will be replaced by crlf in package-lock.json. the file will have its original line endings in your working directory code example

Example 1: warning: LF will be replaced by CRLF

git config --global core.autocrlf true

Example 2: lf will be replaced by crlf

Linux and MacOS: use characters as in file
$ git config --global core.autocrlf input

Windows: deactivate the automatic conversion to CRLF
$ git config --global core.autocrlf false

Example 3: fatal: LF would be replaced by CRLF in package.json

$ git config --global core.autocrlf false
$ git config --global core.safecrlf false

Example 4: lf will be replaced by crlf in package.json

git config core.autocrlf true