Use the values of --min-port and --max-port in TCP connections.

Rather that letting the kernel pick source ports, do it ourselves
so that the --min-port and --max-port parameters are be obeyed.
diff --git a/CHANGELOG b/CHANGELOG
index e6a2231..34ad22e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,8 @@
+version 2.83
+	Use the values of --min-port and --max-port in outgoing
+	TCP connections to upstream DNS servers.
+
+	
 version 2.82
 	Improve behaviour in the face of network interfaces which come
 	and go and change index. Thanks to Petr Mensik for the patch.