Merge r236671 from head:

Merge r236671 from head:
  Merge revision 1.715 from OpenBSD:

    date: 2010/12/24 20:12:56;  author: henning;  state: Exp;  lines: +3 -3
    in pf_src_connlimit, the indices to sk->addr were swapped.
    tracked down and diff sent by Robert B Mills <rbmills at sdf.lonestar.org>
    thanks, very good work! ok claudio

  Impact is that the "flush" keyword didn't work.

  Obtained from:        OpenBSD

git-svn-id: svn://svn.freebsd.org/base/stable/9@237053 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f