Custom price_handler options don't work

I found this trying to work out how to display user points instead of $ values for products. I know of the userpoints_ubercart module but it only changes the prices on individual product pages, not product lists and when you buy with points you get a confirmation and invoice with the $ value listed, which is irrelevant on my site.

So I tried making a custom price_handler and override the options so that it uses the word Points instead of $ and so on. It doesn't work.

The reason is line 258:

$handlers['options'] += $hook['options'];</options>

In php adding arrays with a + will not overwrite the contents of duplicated keys in the left array in the equation. i.e. only new keys in $hook['options'] will be added to the defaults.

The correct line should be:

<code>$handlers['options'] = $hook['options'] + $handlers['options'];