Bring findroute up to date with FINDROUTE implementation.
Bring findroute up to date with FINDROUTE implementation.

Noted by Hai Dao Le <daolehai@nm.gist.ac.kr> in January.
I appear to have never committed the fix.

Frank changed FINDROUTE to return the successors to fix some join
bug (5308cdead57f) but we neglected to update the findroute utility
correspondingly.  This patch prevents the remote side from
including the succesors in the reply so that the output of
findroute once again makes sense.

sit/dht,weidezhang/dht,weidezhang/dht,sit/dht,sit/dht,weidezhang/dht,sit/dht,weidezhang/dht,sit/dht,weidezhang/dht