This is a git subtree split of Drupal 8's /core directory.
This was done using the git-subsplit script by Simensen...
$ git subsplit init https://github.com/drupal/drupal$ git subsplit update$ git subsplit publish "
core:git@github.com:robloach/core.git
" --heads=master