Summary:
Followup for CLI rewrite (a477aec10d). See the comment in the code for details.
**Test plan (required)**
- Published to Sinopia locally ([docs](https://github.com/facebook/react-native/tree/master/react-native-cli))
- Ran 'react-native init MyApp', the correct files were created (no more .npmignore, but have .gitignore):
$ cd MyApp
$ ls -a
. .flowconfig __tests__ ios
.. .gitattributes android node_modules
.babelrc .gitignore index.android.js package.json
.buckconfig .watchmanconfig index.ios.js yarn.lock
- Changed .flowconfig, ran 'react-native upgrade'. Saw a prompt "Do you want to overwrite .flowconfig", tried answering first 'n' and then 'y'. When answering 'y' the file was overwritten by the version from the template as expected.
Closes https://github.com/facebook/react-native/pull/11051
Differential Revision: D4214831
Pulled By: ericvicenti
fbshipit-source-id: 7c6aae4f97c7d45e7241bf017ed2f6527d5d29fe
9712d335e2