add the new line (not sure if the format call is really ok--it was copied from compassgps:
minetest.chat_send_player(player:get_player_name(), S("Bones placed at %s."):format(pos))
## Known issues:
* The tsm_pyramids fork by xisd is available again at <https://framagit.org/xisd-minetest/tsm_pyramid> (xisd had deleted his GitHub account).
Compare to https://github.com/poikilos/tsm_pyramids and see whether that repo can be deleted.
* minetestserver git installer doesn't take into account that minetest_game is NOT updated automatically and must overwrite existing one (should be /usr/local/share/minetest/games/minetest_game --tested on Ubuntu 17.10 Artful)