Merge branch 'master' of https://github.com/mattneub/Programming-iOS-Book-Examples

Author: mattneub

bk1ch11p477kvo/ch13p355kvo/AppDelegate.swift

@@ -30,9 +30,9 @@ class Observer {
 
     var obs = Set<NSKeyValueObservation>()
 
-    func registerWith(_ mc:Observed) {
+    func registerWith(_ observed:Observed) {
         let opts : NSKeyValueObservingOptions = [.old, .new]
-        let ob = mc.observe(\.value, options: opts) { obj, change in
+        let ob = observed.observe(\.value, options: opts) { obj, change in
             // obj is the observed object
             // change is an NSKeyValueObservedChange
             if let oldValue = change.oldValue {