title: Really close lines with NSAttributedString?
body: <p>I want to have two lines of text appear really close together (small line spacing) for a button. I have the following code:</p>
  
  <pre><code>NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:@"50 WPM"];
  
  NSMutableParagraphStyle *paragrapStyle = [[NSMutableParagraphStyle alloc] init];
  paragrapStyle.alignment = NSTextAlignmentCenter;
  paragrapStyle.lineSpacing = -10;
  
  [string addAttribute:NSParagraphStyleAttributeName value:paragrapStyle range:NSMakeRange(0, string.length)];
  
  UIFont *font1 = [UIFont systemFontOfSize:22.0];
  [string addAttribute:NSFontAttributeName value:font1 range:NSMakeRange(0, string.length - 4)];
  
  UIFont *font = [UIFont systemFontOfSize:15.0];
  [string addAttribute:NSFontAttributeName value:font range:NSMakeRange(string.length - 3, 3)];
  
  [string addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(0, string.length)];
  
  [self.button setAttributedTitle:string forState:UIControlStateNormal];
  </code></pre>
  
  <p>But as linespacing can't be negative, it doesn't get nearly as close as I'd like it to be. It looks like this:</p>
  
  <p><img src="https://i.stack.imgur.com/t1YYj.png" alt="enter image description here"></p>
  
  <p>Is there any way to get them closer?</p>