Making sensible cart weight values

Hi there

I found my cart weights were being calculated to long decimal values like

2.3434344545kg

so I edited the plugin php file like so:

` <tr class=”total-weight”>
<th><?php _e( ‘Total Weight’, ‘woocommerce-cart-weight’ ); ?></th>
<td><?php
$crazyweight = $woocommerce->cart->cart_contents_weight ;
$cartweight = number_format((float)$crazyweight, 2, ‘.’, ”);
echo $cartweight . ‘ ‘ . get_option( ‘woocommerce_weight_unit’ ); ?></td>
</tr>`