Add "Instruments" to the filename of exported instruments ZIP

Author: Bentroen

scripts/pack_instruments/pack_instruments.gml

@@ -2,7 +2,8 @@
 // https://help.yoyogames.com/hc/en-us/articles/360005277377 for more information
 function pack_instruments() {
 	var fn, tempdir, ins, src, dst, count;
-	fn = string(get_save_filename_ext("ZIP archive (*.zip)|*.zip", condstr(song_name == "", song_name, "*") + ".zip", "", "Pack instruments to ZIP file"));
+	show_debug_message(song_name)
+	fn = string(get_save_filename_ext("ZIP archive (*.zip)|*.zip", condstr(filename == "", "", filename_change_ext(filename, "") + " - ") + "Instruments.zip", "", "Pack instruments to ZIP file"));
 	if (fn = "") return 0;
 
 	tempdir = data_directory + "Temp\\";