title: Swift: Get currency symbol from currency code is not working
body: <p>I want Currency symbol from Currency code. 
  for e.g) EUR ->  €, USD -> $, SEK -> kr, DKK -> kr</p>
  
  <p>I am using below code to get currency symbol.</p>
  
  <pre><code>func getSymbolForCurrencyCode(code: String) -&gt; String? {
     let locale = NSLocale(localeIdentifier: code)
     return locale.displayName(forKey: NSLocale.Key.currencySymbol, value: code)
  }
  </code></pre>
  
  <p>But it returns SEK for SEK and DKK for DKK, it should return kr.
  For USD, GBP, EUR its working fine.</p>
  
  <p>What could be the issue?</p>