Define RPL_STARTTLS.

include/numeric.h

@@ -316,6 +316,7 @@ extern const char *form_str(int);
 
 #define ERR_HELPNOTFOUND     524
 
+#define RPL_STARTTLS         670 /* ircv3.atheme.org tls-3.1 */
 #define RPL_WHOISSECURE      671 /* Unreal3.2 --nenolod */
 
 #define RPL_MODLIST          702

src/messages.tab

@@ -695,7 +695,7 @@ static  const char *  replies[] = {
 /* 667 */	NULL,
 /* 668 */	NULL,
 /* 669 */	NULL,
-/* 670 */	NULL,
+/* 670 RPL_STARTTLS, */		":STARTTLS successful, proceed with TLS handshake",
 /* 671 RPL_WHOISSECURE, */	"%s :is using a secure connection",
 /* 672 */	NULL,
 /* 673 */	NULL,