Summary:
Being a environment test, `npm run is-monolithic` is expected to fail when pulling the package from npm and to succeed when pulling it from github. Unfortunately, when returning false, npm will throw a tantrum by default if not explicitely disabled. It's not a hard failure, the build still complete, but it's better this way.
Closes https://github.com/facebook/yoga/pull/362
Reviewed By: gkassabli
Differential Revision: D4480608
Pulled By: emilsjolander
fbshipit-source-id: 0832a2158647f49b5230e2f658997f94774cec5b
b87fc217df