fixed bugs with undeclared variables

fs_edit_general.lua

@@ -27,7 +27,7 @@ minetest.register_chatcommand( 'npc_talk_debug', {
 	description = "Sets you as debugger for the yl_speak_up-NPC with the ID <n_id>.\n"..
 		"  <list> lists the NPC you are currently debugging.\n"..
 		"  <off> turns debug mode off again.",
-	privs = {npc_talk_owner},
+	privs = {npc_talk_owner = true},
 	func = function(pname, param)
 		if(param and param == "off") then
 			local count = 0

fs_save_or_discard_or_back.lua

@@ -86,6 +86,7 @@ yl_speak_up.get_fs_save_or_discard_changes = function(player, param)
 	local n_id = yl_speak_up.speak_to[pname].n_id
 	-- TODO
 	local target_name = "quit"
+	local target_dialog = nil -- TODO
 	if(target_dialog and target_dialog ~= "") then
 		target_name = "go on to dialog "..minetest.formspec_escape(target_dialog)
 		if(target_dialog == "edit_option_dialog") then