Document nil player as being allowed for can_dig

ShadowNinja · ShadowNinja · commit e680d49774b0 · 2015-03-27T15:11:28.000-04:00
diff --git a/doc/lua_api.txt b/doc/lua_api.txt
@@ -3023,7 +3023,7 @@ Definition tables
         ^ Called after destructing node when node was dug using
           minetest.node_dig / minetest.dig_node
         ^ default: nil ]]
-        can_dig = function(pos,player) --[[
+        can_dig = function(pos, [player]) --[[
         ^ returns true if node can be dug, or false if not
         ^ default: nil ]]
 
