efi_name_to_guid
bool efi_name_to_guid(const char *, EFI_GUID *);
if (efi_name_to_guid(optarg, &matchguid) == false) {
if (efi_name_to_guid(optarg, &matchguid) == false) {
if (efi_name_to_guid(uuid, &guid) == false) {
if (efi_name_to_guid(uuid, &guid) == false) {