function uc_stock_adjust($sku, $newStock); not returning any value
Function uc_stock_adjust has no return value.


  Description: This function adjust a particular product SKU by a
  certain value (a positive integer will add to stock, a negative
  integer will remove from stock).
  
  Parameters:
  $sku - The product SKU that will have its stock level adjusted
  $qty - The quantity to add to the stock level 
  
  Return value: No return value.