alt Hacker NewsDepending on the implementation (and I don't know which `ls` is being referred to), modifying `ls` might mean modifying an FSF project which require copyright assignment as a condition of patch submissions.
Depending on the implementation (and I don't know which `ls` is being referred to), modifying `ls` might mean modifying an FSF project which require copyright assignment as a condition of patch submissions.
That's only the case if the author would want to upstream their changes. If they wanted to only fork ls then they would only be required to comply with the license, without assigning copyright over.