ExpressionEngine switch, always be closing (Feature Request)

switch.txt

{exp:channel:entries}

	{switch values='<div class="row">||'}
	
		<div class="col-md-4">
		{sn_programme_block}
		</div><!-- / .col-md-4 -->
		
	{switch values='||</div><!-- / .row -->' closing='</div><!-- / .row -->'}

{/exp:channel:entries}

"closing" parameter allows you to pass a value that a switch loop should always close with if the last 'switch group' is not equal to the number of switch values provided. i.e. in the case above if there were 1 or 2 results in the last switch group the closing would never be applied.