title: I18n.t Translation Missing Default Value Nil
body: <p>So I know how return a default value if I get "translation missing:" when reading a yaml file.</p>
  
  <pre><code>some = I18n.t("something.something_else", default: "value")
  </code></pre>
  
  <p>But how do I do that in the Ruby way if I want the default value to be nil? I know I can regex and match for "translation missing:" from the variable some and if it matches, I would have it assign to nil. But what I wanted to do is have </p>
  
  <pre><code>some = I18n.t("something.something_else", default: nil)
  </code></pre>
  
  <p>But it just returned translation missing for me. Does anyone know a good way?</p>