title: Concat strings with separator in velocity template
body: <p>In my velocity template, I want to concat strings delimited by comma(,) using foreach loop.</p>
  
  <pre><code>#foreach($field in $MyObject.Fields)
      ${field.Name},
  #end
  </code></pre>
  
  <p>This results in an extra comma at the end. How can avoid the last unwanted comma?</p>
  
  <p>PS: I am using NVelocity 0.4.2</p>
  
  <p>Thanks</p>