[man-pages/f18] (4 commits) ...- updated additional man pages

[pschiffe]

Summary of changes:

  964186e... - resolves: #866874   updated to 3.43 (*)
  d9fefcd... - added description of the TCP_CONGESTION on the tcp(7) man (*)
  0e59178... - added description of the IP_MULTICAST_ALL on the ip(7) ma (*)
  f5d9dd8... - updated additional man pages (*)

(*) This commit already existed in another branch; no separate mail sent