title: function() used as value compile error
body: <p>I'm trying to learn the basics of Go by tweaking examples as I go along the tutorial located here:</p>
  
  <p><a href="http://tour.golang.org/#9" rel="nofollow">http://tour.golang.org/#9</a></p>
  
  <hr>
  
  <p>Here's a small function I wrote that just turns ever character to all caps.</p>
  
  <pre><code>package main
  
  import (
      "fmt"
      "strings"
  )
  
  func capitalize(name string) {
      name = strings.ToTitle(name)
      return
  }
  
  func main() {
      test := "Sergio"    
      fmt.Println(capitalize(test))
  }
  </code></pre>
  
  <p>I'm getting this exception:</p>
  
  <blockquote>
    <p>prog.go:15: capitalize(test) used as value</p>
  </blockquote>
  
  <p>Any glaring mistakes?</p>