Changed the syntax slightly, @philsturgeon may be claustrophobic as he doesn't like no spaces
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php
index 2e58086..e78ecd5 100644
--- a/system/libraries/Cart.php
+++ b/system/libraries/Cart.php
@@ -244,7 +244,7 @@
// Now that we have our unique "row ID", we'll add our cart items to the master array
// grab quantity if it's already there and add it on
- if( isset($this->_cart_contents[$rowid]['qty']))
+ if (isset($this->_cart_contents[$rowid]['qty']))
{
// set our old quantity
$old_quantity = (int)$this->_cart_contents[$rowid]['qty'];