ActiveRecord::tableName() hardcoded prefix fix

Need some help with comment fixing:

```
/**
 * Declares the name of the database table associated with this AR class.
 * By default this method returns the class name as the table name by calling [[Inflector::camel2id()]]
 * with prefix 'tbl_'. For example, 'Customer' becomes 'tbl_customer', and 'OrderItem' becomes
 * 'tbl_order_item'. You may override this method if the table is not named after this convention.
 * @return string the table name
 */
```