patch for gnatsweb.pl

[David, Lysander]

Hi,

When there is an gnats error, while submitting a pr,
the error message doesn't get returned.  Here is a patch to fix it.
I am using gnatsweb 2.8.2.

diff gnatsweb.pl gnatsweb.pl.new
1185c1185,1191
<       print_gnatsd_error($gnats::ERRSTR);
---
>               my $page = "Error";
>               print_header();
>               page_start_html ( $page );
>               page_heading ( $page, "GNATS Error" );
>               print_gnatsd_error($gnats::ERRSTR);
>               page_footer ( $page );
>               page_end_html ( $page );


Thanks,
Lysander