default to 7 days.

tools/tinderbox/report-http-status.pl

@@ -150,7 +150,7 @@ sub is_http_alive() {
   }
 
   # Hard-coded for now.
-  my $graph_url = "http://$graph_server/graph/query.cgi?tbox=$ARGV[0]&testname=http_alive&autoscale=&size=&days=&units=hours&ltype=&points=&avg=&showpoint=";
+  my $graph_url = "http://$graph_server/graph/query.cgi?tbox=$ARGV[0]&testname=http_alive&autoscale=&size=&days=7&units=hours&ltype=&points=&avg=&showpoint=";
 
   ReportData::send_tbox_packet("tinderbox-daemon\@warp.mcom.com",
                                "Talkback",