Clean up code a bit

command.lua

@@ -1,7 +1,6 @@
 local S = calendar._get_translator("calendar")
 
 minetest.register_chatcommand("calendar", {
-	param = "",
 	description = S("Display calendar"),
 	func = function( name, param )
 		calendar.show_calendar(name)

gui.lua

@@ -53,21 +53,17 @@ function calendar.show_calendar(player_name, settings, wanted_months, wanted_yea
 
 	local days, months, years = calendar.get_date()
 	local total_days = minetest.get_day_count()
-	local ddays, dmonths, dyears = calendar.get_date(nil, settings.ordinal)
-	local wanted_dmonths, wanted_dyears
+	local wanted_dyears
 	if not wanted_months then
 		wanted_months = months
 	end
 	if not wanted_years then
 		wanted_years = years
 	end
-	wanted_dmonths = wanted_months
 	wanted_dyears = wanted_years
 	if settings.ordinal then
-		wanted_dmonths = wanted_dmonths + 1
 		wanted_dyears = wanted_dyears + 1
 	end
-	local start_day, end_day
 	local tdays = 0
 	tdays = tdays + wanted_years * (calendar.MONTHS * calendar.MONTH_DAYS)
 	tdays = tdays + wanted_months * calendar.MONTH_DAYS
@@ -212,7 +208,8 @@ function calendar.show_calendar(player_name, settings, wanted_months, wanted_yea
 	formspec = "size["..size_x..","..size_y.."]" .. formspec
 	minetest.show_formspec(player_name, "calendar:calendar", formspec)
 
-	player_current_calendars[player_name] = { years = wanted_years, months = wanted_months, settings = settings, caption_format = caption_format }
+	player_current_calendars[player_name] =
+		{ years = wanted_years, months = wanted_months, settings = settings, caption_format = caption_format }
 end
 
 minetest.register_on_player_receive_fields(function(player, formname, fields)

init.lua

@@ -30,7 +30,6 @@ else
 end
 
 local S = calendar._get_translator("calendar")
-local F = minetest.formspec_escape
 
 dofile(minetest.get_modpath("calendar").."/gameconfig.lua")