LFS pointer files have to be UTF-8 with \n as line ending character.
That is described in [1]. Fix JGit to follow this rules.
[1] https://github.com/github/git-lfs/blob/master/docs/spec.md
Bug: 507120
Change-Id: Ib6bd13f1cc17f1a3de125249b4f250b7b0692396