title: Swift how to print optional string
body: <p>Maybe a very basic question, but haven't found a good answer without a lot of extra code basically:</p>
  
  <pre><code>var item: String?
  print(item) //works as expected
  print("Item: "+item) //compile error
  </code></pre>
  
  <p>I'd like to achieve the second form without extra variables or expressions/code in some way?</p>