title: Convert string to valid XML
body: <p>I have the following string:</p>
  
  <pre><code>&lt;String Name=XPTO&gt;&lt;nullCheck&gt;&lt;fixedLength length=2 justify=left&gt;
  </code></pre>
  
  <p>It's almost a valid XML except for values ​​that don't have <code>""</code></p>
  
  <p>I would like to know how I can convert to this:</p>
  
  <pre><code>&lt;String Name="XPTO"&gt;&lt;nullCheck&gt;&lt;fixedLength length="2" justify="left"&gt;
  </code></pre>