packaging: pass extra_pyoxidizer_vars only to pyoxidizer...
packaging: pass extra_pyoxidizer_vars only to pyoxidizer
Before, we would attempt to call a function (build_installer_py2exe)
that didn't accept this keyword argument. This was preventing the
building of py2exe installers.
Differential Revision:
https://phab.mercurial-scm.org/D11355