[Dnsmasq-discuss] How do I tell dnsmasq not to use certain IPs?

[wdt]

Here is my current command-line configuration:

dnsmasq -k -K -F 192.168.1.200,192.168.1.249,255.255.255.0,12h

So I've given dnsmasq the IP range 192.168.1.200 to 192.168.1.249 to
use for DHCP.

But I have two specific IP addresses within that range that are being
used by clients with pre-set fixed IP addresses.  For example
192.168.1.203 and 192.168.1.234.

In my setup it is quite awkward to change the 2 clients' fixed IPs to
be outside the DHCP range.  Is there a dnsmasq option that lets me
exclude specific IPs from being used within a given DHCP range of
addresses?

My version of dnsmasq is:
Dnsmasq version 2.35  Copyright (C) 2000-2006 Simon Kelley
Compile time options IPv6 GNU-getopt ISC-leasefile no-DBus no-I18N

Thanks very much,
Bill