jest-environment-jsdom: add ? to options parameter (#5240)
jest-environment-jsdom: add ? to options parameter (#5240)

As suggested by @thymikee 
 in https://github.com/facebook/jest/pull/5227#discussion_r159994421
bookman25/jest,ide/jest,ide/jest,facebook/jest,ide/jest,bookman25/jest,cpojer/jest,cpojer/jest,facebook/jest,bookman25/jest,cpojer/jest,facebook/jest