I don't know if you folks already caught this one, but, in the 4.4lite
   version of sbin/route/route.c, there is a missing "break" in the case
   clause that sets iflag upon creation of an interface route.  It accidently
   falls through to code that marks these as non-static.

It's not clear to me that's `accidental'.

1) RTF_STATIC is for `manually added' routes.  Interface routes are
not `manually added'.

2) RTF_STATIC isn't used by anything in the kernel, by route(8), by
routed(8), or by arp(8).  It's only a hint displayed to the user.

What is it you're trying to fix?