title: Multiple line tool tip in wpf using c#
body: <p>I want to use multiple line tool tip in wpf
  but thie is look like </p>
  
  <pre><code>line 1 
      line2
  </code></pre>
  
  <p>but i want to display this miltiple line tool tip in the given format </p>
  
  <pre><code>line 1
  line 2
  </code></pre>