If we fail to find a requested namespace, we should tell the user which ones we know about, since those were already fetched. This allows users to fetch all namespaces by specifying a dummy namespace, failing, then copying the list of namespaces in the config. Eventually, we should have a flag that allows fetching all namespaces automatically. Reviewed-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>