title: Fill the remainder of a string with blank spaces
body: <p>I have a string with, for example, 32 characters. For first, i want to establish that the string have max 32 characters and i want add blank spaces if characters is only, for example, 9.</p>
  <p>Example:</p>
  <pre><code>ABCDEFGHI ---&gt; 9 characters
  </code></pre>
  <p>I want this:</p>
  <pre><code>ABCDEFGHI_______________________ ---&gt; 9 characters + 23 blank spaces added automatically.
  </code></pre>