Since the display name in the about dialogue needs to be different from the name set with g_set_application_name (which isn't set anyway) (e.g. in the builtin-applets case!), we need to set the 'program-name' property. See bug 345822.

./gnome-panel/panel-context-menu.c:     about = gtk_about_dialog_new ();
./applets/clock/clock.c:        cd->about = gtk_about_dialog_new ();
./applets/fish/fish.c:  fish->about_dialog = gtk_about_dialog_new ();
./applets/notification_area/main.c:  data->about_dialog = gtk_about_dialog_new ();
./applets/notification_area/main-old.c:  tray->about_dialog = gtk_about_dialog_new ();
./applets/notification_area/quick-lounge.c:        about_dialog = gtk_about_dialog_new ();
./applets/wncklet/wncklet.c:    *dialog = gtk_about_dialog_new ();