salut_ft_manager_new_channel: factor out generate_object_path
salut_ft_manager_new_channel: factor out generate_object_path

freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut