ripd: Change the start value of sequence 1 to 0

Signed-off-by: T-Nicolas <[email protected]>
(cherry picked from commit 1a64fe4)

ripd/ripd.c

@@ -1045,7 +1045,7 @@ static size_t rip_auth_md5_ah_write(struct stream *s, struct rip_interface *ri,
 	/* RFC2080: The value used in the sequence number is
 	   arbitrary, but two suggestions are the time of the
 	   message's creation or a simple message counter. */
-	stream_putl(s, ++seq);
+	stream_putl(s, seq++);
 
 	/* Reserved field must be zero. */
 	stream_putl(s, 0);