Sometimes there can be differences between the English text and the French text. As for the way amendments are drafted, they're drafted separately in English to address the English portion of the bill, and then in French to address the French portion of the bill.
And that means that, sometimes, there are slight variations here and there. In this case, the reason was to bring it in line with the French version of the bill.
When you read an amendment, you sometimes notice slight differences between the English and French versions. That's common, but it doesn't change the substance.