Remove comma from unlimited items body in content type
for anyone else using the progressive theme:
template.php, line 458:
from
  $output .= drupal_render($variables['items'][$i]) . (($i == count($variables['items']) - 1) ? '' : ', ');

to
  $output .= drupal_render($variables['items'][$i]) . (($i == count($variables['items']) - 1) ? '' : '');