I heard back from Cisco. There is an error in the documentation for configuring the snmpconfig.xml file.
Also, if you need more than one host, you have to use the snmpconfig.xml file instead of the master.props entries shown in the documentation.
Here is a corrected sample of the snmpconfig.xml entry for one server. Replace public with your community string. Replace server with your snmp server name.
<?xml version="1.0" encoding="UTF-8"?>
<snmp_config>
<default_community value="public"/>
<default_hostname value="server"/>
<default_port value="162"/>
<community id="public">
<host hostname="server" port="162"/>
</community>
</snmp_config>