K 10
svn:author
V 5
andre
K 8
svn:date
V 27
2010-08-18T17:39:47.518366Z
K 7
svn:log
V 523
Untangle the net.inet.tcp.log_in_vain and net.inet.tcp.log_debug
sysctl's and remove any side effects.

Both sysctl's share the same backend infrastructure and due to the
way it was implemented enabling net.inet.tcp.log_in_vain would also
cause log_debug output to be generated.  This was surprising and
eventually annoying to the user.

The log output backend is kept the same but a little shim is inserted
to properly separate log_in_vain and log_debug and to remove any side
effects.

PR:		kern/137317
MFC after:	1 week

END