title: How to change leftBarbuttonItem title?
body: <p>I want to change leftBarButton title. I've tried this </p>
  
  <pre><code>UIBarButtonItem *newBackButton =
  [[UIBarButtonItem alloc] initWithTitle:@"Back"
                                   style:UIBarButtonItemStyleBordered
                                  target:nil
                                  action:nil];
  [[self navigationItem] setLeftBarButtonItem:newBackButton];
  </code></pre>
  
  <p>but it brings changes like  </p>
  
  <p><img src="https://i.stack.imgur.com/oytAN.png" alt="enter image description here"></p>
  
  <p>But I want it like </p>
  
  <p><img src="https://i.stack.imgur.com/sUr22.png" alt="enter image description here"> </p>
  
  <p>How it can be possible?</p>