Command completion for 'git-push --recurse-submodules' already knows to complete some modes. However, the recently added mode 'only' is missing. Adding 'only' to the recognized modes completes the list of non-trivial modes. Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>