Fix playground

Signed-off-by: Stephen Celis <stephen@stephencelis.com>

Author: stephencelis

SQLite.playground/Contents.swift

@@ -2,7 +2,7 @@ import SQLite
 
 let db = try! Connection()
 
-db.trace(print)
+db.trace { print($0) }
 
 let users = Table("users")
 

SQLite.playground/contents.xcplayground

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<playground version='5.0' target-platform='osx' requires-full-environment='true' display-mode='raw'>
+<playground version='5.0' target-platform='osx' display-mode='raw'>
     <timeline fileName='timeline.xctimeline'/>
 </playground>