/lit/ - Literature

I found a program from 2016. I downloaded it and I'm rewriting it because it's full of errors and lag. Should I send the program to the original guy when I fix it or would that be seen as bragging?
Personally, I don't think it matters because it looks like it was written by someone on their first day of programming so maybe they'll be happy that they provided a nice skeleton to work on. Maybe they'll be glad someone finished what they made in a day or something.
I wish I knew the courtesy in this case.