man: add fido2-cred -M -a

man/fido2-cred.1

@@ -1,4 +1,4 @@
-.\" Copyright (c) 2018-2023 Yubico AB. All rights reserved.
+.\" Copyright (c) 2018-2024 Yubico AB. All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions are
@@ -35,6 +35,7 @@
 .Nm
 .Fl M
 .Op Fl bdhqruvw
+.Op Fl a Ar mode
 .Op Fl c Ar cred_protect
 .Op Fl i Ar input_file
 .Op Fl o Ar output_file
@@ -120,6 +121,11 @@ to verify a credential.
 Request the credential's
 .Dq largeBlobKey ,
 a 32-byte symmetric key associated with the generated credential.
+.It Fl a Ar mode
+When making a credential, request enterprise attestation.
+Please refer to
+.In fido/param.h
+for the set of possible values.
 .It Fl c Ar cred_protect
 If making a credential, set the credential's protection level to
 .Ar cred_protect ,