A simple NULL check on a MIT repo is no deal at all. You'll also get it into a FSF project without any written forms. The FSF prefers that a contributor files

A simple NULL check on a MIT repo is no deal at all. You'll also get it into a FSF project without any written forms. The FSF prefers that a contributor files a copyright assignment for significant contributions, i.e. > 15 lines of code or docs. A null check is insignificant work. No dilemma