[ljcom] r10936: LJSUP-9628: get rid of warnings.

U   trunk/cgi-bin/LJ/PartnerSite.pm

Modified: trunk/cgi-bin/LJ/PartnerSite.pm
===================================================================
--- trunk/cgi-bin/LJ/PartnerSite.pm	2011-08-30 06:36:19 UTC (rev 10935)
+++ trunk/cgi-bin/LJ/PartnerSite.pm	2011-08-30 13:54:46 UTC (rev 10936)
@@ -599,9 +599,10 @@
     my $additional_lj_resources = $self->lj_resources;
     LJ::need_res(@$additional_lj_resources) if $additional_lj_resources;
 
-    return 
-        LJ::res_includes( {'only_needed' => 1} ) . 
-        $self->raw_resources($opts);
+    my $res = LJ::res_includes( {'only_needed' => 1} ) || '';
+    my $raw_res = $self->raw_resources($opts) || '';
+    return $res . $raw_res;
+    
 }
 
 sub raw_resources {