User guide possible mistake

[eluser]adaxa[/eluser]
I would like to alert you that that there might be a mistake in the user guide (URI Routing).

Code:

$route['product/(:num)'] = "catalog/product_lookup_by_id/$1";

A URL with "product" as the first segment, and anything in the second will be remapped to the "catalog" class and the "product_lookup_by_id" method passing in the match as a variable to the function.

I think only numeric values will be match in second segment.