trivial: fu-util: fix using a GUID for update command
trivial: fu-util: fix using a GUID for update command

fwupd/fwupd,hughsie/fwupd,hughsie/fwupd,fwupd/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd