git: Kernel ELF: Restore legacy FreeBSD brand

[Thomas Nikolajsen]

>:seems like they are changed on installworld (mtime changed);
>:anyway they aren't removed on upgrade ('make upgrade'),
>:so all hosts which has been source upgraded for a few years will have file.
>
>    I think that's in line with what we want.  If things move around we
>    delete the old binaries and libraries but if libraries get out of date
>    and are no longer built we generally let the originals stand when the
>    system is upgraded so any installed third-party programs which depend
>    on them still run.

Exactly, my note was just that it is a common & versatile situation to have a
working setup on DragonFly systems for executing old FreeBSD binaries,
comitted seemed to indicate that it is rare.

 -thomas