Commit 202dc3fc (Documentation: remove
obsolete networking/multicast.txt file) deleted the obsolete file. After
the file has been removed, clean up a couple of places where references
to the deleted file were made so that users wouldn't be confused when
they consult the Help menu.
Signed-off-by: NJean Sacren <sakiwit@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>