title: Why is a highlighted % being appended to the output of printf?
body: <p>When I print a string with <code>printf</code> like in the following:</p>
  <pre class="lang-c prettyprint-override"><code>#include &lt;stdio.h&gt;
  
  void main(void)
  {
      printf(&quot;Foo&quot;);
  }
  </code></pre>
  <p>In the output, I get the following:</p>
  <p><a href="https://i.stack.imgur.com/7T5CM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7T5CM.png" alt="enter image description here" /></a></p>
  <p>As seen in this picture, there is a highlighted percent sign placed after the output of <code>printf</code>. What's causing this? How do I get rid of it?</p>