add +nsid documentation in the manpage
@@ -222,6 +222,15 @@ specify named base64 tsig key, and optional an algorithm (defaults to hmac-md5.s
\fB\-z \fR
don't randomize the nameserver list before sending queries.
+
+.SS EDNS QUERY OPTIONS
+
+.TP
+\fB\+nsid \fR
+When set, this EDNS option includes an EDNS name server ID request in the query.
+
+
+
.SH "EXIT STATUS"
The exit status is 0 if the looked up answer is secure and trusted,
or insecure.
