kern/142019: [em] em needs "ifconfig em0 down up" when link was gone

[linimon at FreeBSD.org]

Old Synopsis: em needs "ifconfig em0 down up" when link was gone
New Synopsis: [em] em needs "ifconfig em0 down up" when link was gone

Responsible-Changed-From-To: freebsd-bugs->freebsd-net
Responsible-Changed-By: linimon
Responsible-Changed-When: Sat Dec 26 07:41:55 UTC 2009
Responsible-Changed-Why: 
Over to maintainer(s).

http://www.freebsd.org/cgi/query-pr.cgi?pr=142019