[mkgmap-dev] Commit r4389: fix unlikely but possible error in LinkDestinationHook: Can't use indexOf for coords.

Version mkgmap-r4389 was committed by gerd on Wed, 11 Dec 2019 fix unlikely but possible error in LinkDestinationHook: Can't use indexOf for coords. A way is only connected if the nodes are identical, so don't use Coord.eqauls() which compares the location. http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4389