BUG: $this->get_author($post); Malformed markup

URL not enclosed within quotes.

$this->get_author($post); produces Authorname

Error on line 288 includes/lcp-catlist.php

  public function get_author_to_show($single){     
    if ($this->params['author'] == 'yes'):
      $lcp_userdata = get_userdata($single->post_author);    
    $author_name =  $lcp_userdata->display_name;      
    if($this->utils->lcp_not_empty('author_posts_link') &&
    $this->params['author_posts_link'] == 'yes'){          
      $link = get_author_posts_url($lcp_userdata->ID);
      return "<a href=" . $link . " title='" . $author_name .              
        "'>" . $author_name . "</a>";
    } else {
      return $author_name;          
    }                
    else:     
      return null;
    endif;
  }

Should be

  public function get_author_to_show($single){     
    if ($this->params['author'] == 'yes'):
      $lcp_userdata = get_userdata($single->post_author);    
    $author_name =  $lcp_userdata->display_name;      
    if($this->utils->lcp_not_empty('author_posts_link') &&
    $this->params['author_posts_link'] == 'yes'){          
      $link = get_author_posts_url($lcp_userdata->ID);
      return "<a href='" . $link . "' title='" . $author_name .            
        "'>" . $author_name . "</a>";
    } else {
      return $author_name;          
    }                
    else:     
      return null;
    endif;
  }