$NetBSD

Bind BackSpace to open parent (and not change to parent).

--- ROX-Filer/src/filer.c.orig	2021-06-09 12:27:42.485755107 +0200
+++ ROX-Filer/src/filer.c
@@ -1228,9 +1228,6 @@ gint filer_key_press_event(GtkWidget	*widget,
 		case GDK_Tab:
 			filer_next_selected(filer_window, 1);
 			break;
-		case GDK_BackSpace:
-			change_to_parent(filer_window);
-			break;
 		case GDK_backslash:
 		{
 			ViewIter iter;
--- ROX-Filer/src/menu.c.orig	2021-06-09 12:29:31.430071590 +0200
+++ ROX-Filer/src/menu.c
@@ -238,7 +238,7 @@ static GtkItemFactoryEntry filer_menu_def[] = {
 {">" N_("Blank file"),		NULL, new_file, 0, "<StockItem>", GTK_STOCK_NEW},
 {">" N_("Customise Menu..."),	NULL, customise_new, 0, NULL},
 {N_("Window"),			NULL, NULL, 0, "<Branch>"},
-{">" N_("Parent, New Window"), 	NULL, open_parent, 0, "<StockItem>", GTK_STOCK_GO_UP},
+{">" N_("Parent, New Window"), 	"BackSpace", open_parent, 0, "<StockItem>", GTK_STOCK_GO_UP},
 {">" N_("Parent, Same Window"), NULL, open_parent_same, 0, NULL},
 {">" N_("New Window"),		NULL, new_window, 0, NULL},
 {">" N_("Home Directory"),	"<Ctrl>Home", home_directory, 0, "<StockItem>", GTK_STOCK_HOME},