title: Golang template : Use pipe to uppercase string
body: <p>I want to upper case a string in a golang template using <code>string.ToUpper</code> like :</p>
  
  <pre><code>{{ .Name | strings.ToUpper  }}
  </code></pre>
  
  <p>But this doesn't works because <code>strings</code> is not a property of my data.</p>
  
  <p>I can't import <code>strings</code> package because the warns me that it's not used.</p>
  
  <p>Here the script :
  <a href="http://play.golang.org/p/7D69Q57WcN" rel="noreferrer">http://play.golang.org/p/7D69Q57WcN</a></p>