Documentation for NSViewController init(nibName:bundle:) is incorrect

Radar: #28802828

Documentation for NSViewController init(nibName:bundle:) is incorrect from Mike Zornek on Vimeo.

I say the wrong thing a few times in this spontaneous recording but hopefully there is enough here to reveal the problem. Not a major problem by any means but the Mac frameworks need all the love they can get so let’s be sure to report the changes we want to see.