No space in classes in the shared form

Having this field for the shared form

array(
     'title' => EMAIL_FORM_MAP.'_form_name',
     'attrs' => array('class'=> 'email_form_name'),
     'fields' => array(
      'name' => array(
       'type' => 'text',
       'value' => $form->name,
       'required' => TRUE
      )
     )
    ),

this will output the give class and the require class without a space on the fieldset email_form_labelfieldset-required

Simple fix, in file system/ee/EllisLab/ExpressionEngine/View/_shared/form/fieldset.php on line 32 add a extra space at the beginning of the require class

$fieldset_classes .= ' fieldset-required';