[rootlocus]

> A few years ago Apple introduced a new logging framework called the Unified Logging System, which supports logging with variadic arguments from both Swift and Objective-C. It also supports a host of other features that allow you to categorize and prioritize your log message and, well, it sounds great, but it’s also quite a bit more complicated than just invoking NSLog. It’s complicated enough that I can’t offer a one-line fix for the situation I’ve described here, but I encourage you to investigate your options.