Created attachment 9240 migrate_goodies_url-indicator.patch The attached patch updates the URLs from goodies.xfce.org to docs.xfce.org.
Kevin Bowen referenced this bugreport in commit 198c0327d8095f73a63599e9eeecb94e049cab8d Update URLs from goodies.x.o to docs.x.o (Bug #16166) https://git.xfce.org/panel-plugins/xfce4-indicator-plugin/commit?id=198c0327d8095f73a63599e9eeecb94e049cab8d