Fix demonstration of how to trace SQL statements in docs
Fix demonstration of how to trace SQL statements in docs

The old way shown causes a build error in swift 3 (XCode8):

  Ambiguous reference to member 'print(_:separator:terminator:)'

hyperconnect/SQLite.swift,stephencelis/SQLite.swift,stephencelis/SQLite.swift,stephencelis/SQLite.swift,stephencelis/SQLite.swift,hyperconnect/SQLite.swift,hyperconnect/SQLite.swift