Looks like Travis has moved on from our old images, so we're forced to
update.

It’s not clear if these values are used or needed by the simulator. The doc only seems to mention arm values for the actual device:
https://developer.apple.com/library/content/documentation/General/Reference/InfoPlistKeyReference/Articles/iPhoneOSKeys.html#//apple_ref/doc/uid/TP40009252-SW3

Pass the tests only if we find an expected positive output (rather than checking for negative output to fail the tests).