Update to Swift 5

tonyfreeman · tonyfreeman · commit f9becf6dd6e2 · 2019-06-01T11:15:51.000Z
diff --git a/Package.swift b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:4.2
+// swift-tools-version:5.0
 import PackageDescription
 
 let package = Package(
