K 10
svn:author
V 5
andre
K 8
svn:date
V 27
2013-04-23T14:06:32.716184Z
K 7
svn:log
V 292
When doing RFC3042 limited transmit on the first on second
duplicate ACK make sure we actually have new data to send.
This prevents us from sending unneccessary pure ACKs.

Reported by:	Matt Miller <matt@matthewjmiller.net>
Tested by:	Matt Miller <matt@matthewjmiller.net>
MFC after:	2 weeks

END