title: Why does include? for Ruby return false?
body: <p>I have the following Ruby fragment from a byebug session:</p>
  <pre><code>(byebug) target_name
  &quot;foo/&quot;
  (byebug) target_name.class
  String
  (byebug) target_name.include?('/')
  false
  (byebug) &quot;foo/&quot;.include?('/')
  true
  </code></pre>
  <p>Why does the <code>include?</code> method return <code>false</code> as <code>/</code> is part of <code>foo/</code>?</p>
  <p>Ruby version:</p>
  <pre><code>ruby 2.6.1p33 (2019-01-30 revision 66950) [x86_64-linux]
  </code></pre>