add a acomment to tcp_print()

diff --git a/print-tcp.c b/print-tcp.c
index 81b4ad3a8b192d92c60273706c019e2b01a1aadb..4675f9fc7138a4da227df910db7c09498fa28186 100644 (file)
--- a/print-tcp.c
+++ b/print-tcp.c
@@ -611,6 +611,7 @@ tcp_print(register const u_char *bp, register u_int length,
                                 LENCHECK(datalen);
                                 if (datalen < 2)
                                         goto bad;
+                                /* RFC6994 */
                                 magic = EXTRACT_16BITS(cp);
                                 (void)printf("-");