Summary:
Currently, when the cli tries to determine the package name, it accidentally trims out the entire package name. This makes it appear to the rest of the program as if `react-native link The controller you requested could not be found./my-package` was just `react-native link`. This adds a little regex to prevent that from happening, so that scopes can be passed as parts of packages.
Fixes#18766
Pull Request resolved: https://github.com/facebook/react-native/pull/19828
Differential Revision: D8704742
Pulled By: hramos
fbshipit-source-id: d8183f9b55e8656b8a0acae842e1361a1f428102
6d65e8b4ed