gfio: change Job->Connect menu item string

Change it from Connect <-> Disconnect, same as how we handle
the button.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/gfio.c b/gfio.c
index 153a383..02211f4 100644
--- a/gfio.c
+++ b/gfio.c
@@ -485,20 +485,17 @@
 	 * invisibible...
 	 */
 	w = gtk_ui_manager_get_widget(ui->uimanager, "/MainMenu/JobMenu/Connect");
-	if (w)
-		gtk_widget_set_sensitive(w, connect_state);
+	gtk_widget_set_sensitive(w, connect_state);
+	gtk_menu_item_set_label(GTK_MENU_ITEM(w), connect_str);
 
 	w = gtk_ui_manager_get_widget(ui->uimanager, "/MainMenu/JobMenu/Edit job");
-	if (w)
-		gtk_widget_set_sensitive(w, edit_state);
+	gtk_widget_set_sensitive(w, edit_state);
 
 	w = gtk_ui_manager_get_widget(ui->uimanager, "/MainMenu/JobMenu/Send job");
-	if (w)
-		gtk_widget_set_sensitive(w, send_state);
+	gtk_widget_set_sensitive(w, send_state);
 
 	w = gtk_ui_manager_get_widget(ui->uimanager, "/MainMenu/JobMenu/Start job");
-	if (w)
-		gtk_widget_set_sensitive(w, start_state);
+	gtk_widget_set_sensitive(w, start_state);
 }
 
 static void gfio_set_state(struct gui_entry *ge, unsigned int state)