title: NSNumberFormatter not adding comma after decimal point
body: <p>I am trying to format a number, like this "123.123,00". I am using an <code>NSNumberFormatter</code>. 
  The code is:</p>
  
  <pre><code>NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
  [numberFormatter setGroupingSize:3];
  [numberFormatter setGroupingSeparator:@"."];
  [numberFormatter setUsesGroupingSeparator:YES];
  [numberFormatter setMaximumFractionDigits:12];
  
  NSNumber *num = [NSNumber numberWithDouble:result];
  
  NSString *formattedString = [numberFormatter stringFromNumber:num]; 
  </code></pre>
  
  <p>But it does not seem to work. It gives result like this "266.482107256796". Any idea why the result is not "266.482,107,256,796"?</p>