git-am: remove dash from help message
git-am: remove dash from help message

Signed-off-by: Olivier Marin <d5e37fcebb2cfb70cbbac16186205229e19dc3c2@freesurf.fr>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git