For simple template
{% with var1="super" var2="man" %}
<p>
{{ var1 }}
{{ var2 }}
</p>
{% endwith %}
gives super man but I want superman.
{% spaceless %} does not work for this case (between two strings, not two tags.)
What is the solution? Making {{ var1 }} and {{ var2 }} in one line is actually too long in my code.