Avoiding Volt to add spaces when inserting functions and variables

When I have a code, event a simple one, that prints the content of a variable to the template and/or performs a function or verifies a condition, I usually tab the HTML in the volt template to obain more readability.

These tabs are translated in the final HTML output as spaces, which translates in the browser to see undesired spacings.

Example:

      <h1>
          {% if the_title is defined %}
              {{ the_title }}
          {% endif %}
      </h1>

Translates to:

      <h1>                                        Title                               </h1>

and I see a space before and a space after the "Title".

How can I avoid this?

Thank you.