fix anycast address determination. correct interface address addition when link-local is added (check if ifp matches). make diff to kame repository easier (breaks some KNF)
fix anycast address determination.
correct interface address addition when link-local is added (check if ifp
matches).
make diff to kame repository easier (breaks some KNF)

sync with kame.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars