Comments about extending data are wrong

[andrijamitrovic23]

In erasureExtendSquare function first does extending and filling with arrays of nulls as data chunks of the original data square, then does the filling in the extended parts with encoded original data. However even if the original square data is extended previously the comments (first, second, third, fourth and fifth) are suggesting that extending is done after them where only filling in the extended shares with the encoded data.

Use something like “filling in the data” instead “extending data" within the mentioned comments to avoid confusion.