YADE should not raise an exception if the parameters force_files=false and file_path or file_list are used

<?xml version="1.0" encoding="ISO-8859-1"?>
<job  title="" stop_on_error="no">
    <params >
        <param  name="file_path" value="/home/test/file.txt"/> 
		
		<!--
		<param  name="file_spec"           value="file.txt"/>
		-->
		<param  name="host"                  value="homer.sos"/>
               <param  name="local_dir"             value="/home/test"/>
               <param  name="port"                    value="22"/>
              <param  name="operation"            value="receive"/>
              <param  name="protocol"               value="sftp"/>
             <param  name="user"                      value="test"/>
             <param  name="ssh_auth_method" value="password"/>
             <param  name="password"              value="12345"/>
             <param  name="force_files"            value="false"/>
             <param  name="source_host"         value="homer.sos"/>
    </params>
    <script  language="java" java_class="sos.scheduler.jade.JadeJob"/>
    <run_time />
</job>