upstream: use consistent field names (s/char/byte)

in format description

OpenBSD-Commit-ID: 3de33572733ee7fcfd7db33d37db23d2280254f0

PROTOCOL.key

@@ -11,7 +11,7 @@ an encrypted list of matching private keys.
 	string	ciphername
 	string	kdfname
 	string	kdfoptions
-	int	number of keys N
+	uint32	number of keys N
 	string	publickey1
 	string	publickey2
 	...
@@ -42,11 +42,11 @@ of the cipher block size.
 	...
 	string	privatekeyN
 	string	commentN
-	char	1
-	char	2
-	char	3
+	byte	1
+	byte	2
+	byte	3
 	...
-	char	padlen % 255
+	byte	padlen % 255
 
 where each private key is encoded using the same rules as used for
 SSH agent.
@@ -68,4 +68,4 @@ For unencrypted keys the cipher "none" and the KDF "none"
 are used with empty passphrases. The options if the KDF "none"
 are the empty string.
 
-$OpenBSD: PROTOCOL.key,v 1.2 2021/05/07 02:29:40 djm Exp $
+$OpenBSD: PROTOCOL.key,v 1.3 2022/07/01 04:45:50 djm Exp $