Describe the bug

When running with origin that does not support locking API, following warning is printed:

Remote "origin" does not support the Git LFS locking API. Consider disabling it with:
  $ git config lfs.https://phabricator.showmax.cc/diffusion/PFC/pf-core.git/info/lfs.locksverify false

However, this is printed to stdout. That messes with shell scripting. The logical place to print this to would be stderr.