title: Scala println adding parentheses in output
body: <p>I'm taking my first steps in scala, and here is an "hello world"-like code :</p>
  
  <pre><code>package test
  object Main {
  def main(args: Array[String]): Unit = {
          println("Blabla something : " + 3)
          println("Blabla something : " , 3)
      }
  }
  </code></pre>
  
  <p>Here is the output I get :</p>
  
  <pre><code>Blabla something : 3
  (Blabla something : ,3)
  </code></pre>
  
  <p>Why are there parentheses printed in the second line, along with the "," ?
  I was expecting the same output as in the first line.</p>
  
  <p><strong><em>Note</em></strong> : I tried searching for <em>scala println parentheses</em> and such, but all I get is posts on how to remove the parentheses from the code, not from the output.</p>