Replace deprecated function 'intllib.Getter':

- Check first for 'intllib.make_gettext_pair', otherwise continue using
function 'intllib.Getter'.

3d_armor_stand/init.lua

@@ -1,6 +1,12 @@
 local S = function(s) return s end
 if minetest.global_exists("intllib") then
-	S = intllib.Getter()
+	if intllib.make_gettext_pair then
+		-- New method using gettext.
+		S = intllib.make_gettext_pair()
+	else
+		-- Old method using text files.
+		S = intllib.Getter()
+	end
 end
 local armor_stand_formspec = "size[8,7]" ..
 	default.gui_bg ..