Hi kereszteslevente,
Open plugins/rich-reviews/rich-reviews.php and look for this code around line 427.
$output .= '<div class="rr_review_text"><span class="drop_cap">“</span>' . $rText . '”</div>';
That last double quotation mark is the trailing tiny one you want to remove. The one after the drop_cap class is the big guy.
Hope this helps!
Hey kereszteslevente,
We are looking into making this an option in a future release! There are some issues that we need to work out first but this is definitely on our to-do list.
Thanks for using our plugin and bringing up this option idea!