Patch from BSDI (via Keith Bostic, via NetBSD):

Patch from BSDI (via Keith Bostic, via NetBSD):
>NFS doesn't support chflags; ignore errors unless there's reason
>to believe we're losing bits.  (Note, this still won't be right
>if the server supports flags and we were trying to *remove* flags
>on a file that we copied, i.e., that we didn't create.)