Clarify manpage for --auth-sec-servers
diff --git a/man/dnsmasq.8 b/man/dnsmasq.8
index a0f84e3..f01a5ba 100644
--- a/man/dnsmasq.8
+++ b/man/dnsmasq.8
@@ -827,7 +827,8 @@
.B --auth-peer=<ip-address>[,<ip-address>[,<ip-address>...]]
Specify the addresses of secondary servers which are allowed to
initiate zone transfer (AXFR) requests for zones for which dnsmasq is
-authoritative. If this option is not given, then AXFR requests will be
+authoritative. If this option is not given but --auth-sec-servers is,
+then AXFR requests will be
accepted from any secondary. Specifying
.B --auth-peer
without