Remove C# 6.0 usage

Redth · Redth · commit 38c51c796de3 · 2016-03-16T09:50:03.000-04:00
diff --git a/PushSharp.Apple/Exceptions.cs b/PushSharp.Apple/Exceptions.cs
@@ -24,7 +24,7 @@ public ApnsNotificationException(byte errorStatusCode, ApnsNotification notifica
         { }
 
         public ApnsNotificationException (ApnsNotificationErrorStatusCode errorStatusCode, ApnsNotification notification)
-            : base ($"Apns notification error: '{errorStatusCode}'")
+            : base ("Apns notification error: '" + errorStatusCode + "'")
         {
             Notification = notification;
             ErrorStatusCode = errorStatusCode;

Original file line number	Diff line number	Diff line change
`@@ -24,7 +24,7 @@ public ApnsNotificationException(byte errorStatusCode, ApnsNotification notifica`
`24`	`24`	`{ }`
`25`	`25`
`26`	`26`	`public ApnsNotificationException (ApnsNotificationErrorStatusCode errorStatusCode, ApnsNotification notification)`
`27`		`- : base ($"Apns notification error: '{errorStatusCode}'")`
	`27`	`+ : base ("Apns notification error: '" + errorStatusCode + "'")`
`28`	`28`	`{`
`29`	`29`	`Notification = notification;`
`30`	`30`	`ErrorStatusCode = errorStatusCode;`