-Make an effort to at least filter out a service node making dhcp definitions for itself locally

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@9621 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-server/lib/xcat/plugins/dhcp.pm

@@ -699,6 +699,7 @@ sub preprocess_request
 
 	    foreach my $s (@sn)
 	    {
+		if (scalar @nodes == 1 and $nodes[0] eq $s) { next; }
 		my $reqcopy = {%$req};
 		$reqcopy->{'_xcatdest'} = $s;
 		$reqcopy->{_xcatpreprocessed}->[0] = 1;