title: Using string interpolation, how to pad with a given character?
body: <p>I know I'm in danger here, but couldn't find in SO/Google:</p>
  <p>Using string interpolation, how do I pad with a given character? for instance:</p>
  <pre><code>foreach (var p in people) {
      Console.WriteLine($&quot;{p.Name,-10}: {p.Age}&quot;);
  }
  </code></pre>
  <p>Will result in (e.g.):</p>
  <pre><code>Joe       : 26
  Dan       : 52
  </code></pre>
  <p>How do I change the spaces with dots, <strong>via string interpolation</strong>? to get:</p>
  <pre><code>Joe.......: 26
  Dan.......: 52
  </code></pre>
  <p>(I know I can do <code>p.Name.PadRight(10,'.')</code>, but I'm pretty sure there's a way with string-interpolation parameters, like the padding length).</p>