Bug 574684 - Add help stubs for 4.21 Change-Id: Ibbad3b0d9f772ac301c8b839a75e0143fb7142ac Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.common/+/182792 Tested-by: Alexander Kurtakov <akurtako@redhat.com> Reviewed-by: Alexander Kurtakov <akurtako@redhat.com>