"LibGit2Sharp.LibGit2SharpException : the ProgramData file 'config' doesn't exist: " on macOS

[hach-que]

Reproduction steps

Call Configuration.BuildFrom(null) on macOS.

Expected behavior

It should work fine.

Actual behavior

An exception is thrown because git_config_find_programdata does not work on macOS.

[SamirKharchi]

I confirm this behavior.