=head1 SYNOPSIS
#!/path/to/B<rrdcgi>
-S<[B<--goodfor>|B<-g> I<seconds>]>
S<[B<--filter>]>
-S<[B<--refresh>|B<-r>]>
=head1 DESCRIPTION
Assume that rrdcgi is being run as a filter and not as a cgi.
-=item B<--refresh>|B<-r>
-
-If the B<--goodfor> flag is specified, then B<--refresh> will cause rrdcgi
-to output a Refresh header with the value of the B<--goodfor> value.
-
=back
=head2 Pass 1