Fix indention and error message

src/window.cc

@@ -195,7 +195,7 @@ void Window::create_menu() {
         else
           Singleton::terminal()->print("Error: "+path.string()+" already exists.\n");
       } else {
-        Singleton::terminal()->print("Cancel \n");
+        Singleton::terminal()->print("Dialog was closed \n");
       }
       Singleton::directories()->select(path);
   });
@@ -237,7 +237,7 @@ void Window::create_menu() {
     if (boost::filesystem::exists(path))
       Singleton::directories()->open(path);
     else
-      Singleton::terminal()->print("Cancel \n");
+      Singleton::terminal()->print("Dialog was closed \n");
   });
   menu.action_group->add(Gtk::Action::create("FileSaveAs", "Save As"), Gtk::AccelKey(menu.key_map["save_as"]), [this]() {
     auto path = Dialog::save_file();