conf/172521: [rc] service netif restart <interface> doesn't delete old IPv6 addresses

[crees at FreeBSD.org]

Synopsis: [rc] service netif restart <interface> doesn't delete old IPv6 addresses

State-Changed-From-To: open->closed
State-Changed-By: crees
State-Changed-When: Sun Nov 4 12:56:05 UTC 2012
State-Changed-Why: 
The correct approach is to netif stop, edit the file, then netif start,
as with most rc.conf changes.

http://www.freebsd.org/cgi/query-pr.cgi?pr=172521