upstream: Add RCS IDs to the few files that are missing them; from

Pedro Martelletto

OpenBSD-Commit-ID: 39aa37a43d0c75ec87f1659f573d3b5867e4a3b3

PROTOCOL.agent

@@ -2,4 +2,6 @@ This file used to contain a description of the SSH agent protocol
 implemented by OpenSSH. It has since been superseded by an Internet-
 draft that is available from:
 
+$OpenBSD: PROTOCOL.agent,v 1.13 2020/08/31 00:17:41 djm Exp $
+
 https://tools.ietf.org/html/draft-miller-ssh-agent-02

PROTOCOL.sshsig

@@ -97,3 +97,4 @@ the reserved field if it is not empty.
 The data is concatenated and passed to the SSH signing
 function.
 
+$OpenBSD: PROTOCOL.sshsig,v 1.4 2020/08/31 00:17:41 djm Exp $

PROTOCOL.u2f

@@ -368,3 +368,4 @@ In OpenSSH, the middleware will be invoked by using a similar mechanism to
 ssh-pkcs11-helper to provide address-space containment of the
 middleware from ssh-agent.
 
+$OpenBSD: PROTOCOL.u2f,v 1.25 2020/08/31 00:17:41 djm Exp $

sk-usbhid.c

@@ -1,3 +1,4 @@
+/* $OpenBSD: sk-usbhid.c,v 1.25 2020/08/31 00:17:41 djm Exp $ */
 /*
  * Copyright (c) 2019 Markus Friedl
  * Copyright (c) 2020 Pedro Martelletto

sshsig.c

@@ -1,3 +1,4 @@
+/* $OpenBSD: sshsig.c,v 1.17 2020/08/31 00:17:41 djm Exp $ */
 /*
  * Copyright (c) 2019 Google LLC
  *

sshsig.h

@@ -1,3 +1,4 @@
+/* $OpenBSD: sshsig.h,v 1.9 2020/08/31 00:17:41 djm Exp $ */
 /*
  * Copyright (c) 2019 Google LLC
  *