Sub Category Display in sidebar

Hi everyone, I’ve searched for a while now and I cant seem to find a way to accomplish this, so here it goes.

I am using Daiko’s text widget in my side bar to display only certain categories and sub-categories. My only real problem is how they are being displayed. Right now it looks like this.

Cat 1
Sub Cat 1
Cat 2
Sub Cat 2
Cat 3
Sub Cat 3

What I would like it to look like is this

Cat 1
Sub Cat 1
Cat 2
Sub Cat 2
Cat 3
Sub Cat 3

The tabbing becomes important because each category is a state, and each sub-cat is a city within that state.

The code I am using within the widget is below, is there a paramater that will tab all sub-cats?

<?php
wp_list_cats("optioncount=$c&hierarchical=$h&depth=-1&hide_empty=$e&exclude=1,2,3,4&sort_column=$s");
?>

Thanks in advance for any help.