Cleanup: minor styling nit
Cleanup: use spaces, not tabs

Also removed leading and trailing whitespaces around text within the
`blocktrans` tag, otherwise it's not properly extracted. Note having text
with whitespaces and indented will be fine starting in Django 1.7 by
specifying the `trimmed` attribute in the `blocktrans` tag.
No need to store any intermediate values

And no need for semicolons either ;)