bug#52227: gzip bug: gzip -l produces bad ratio

[Austin Corbett]

*Description of bug:*  "gzip -l" produces the following output:

gzip -l big_archive.tgz
         compressed        uncompressed  ratio uncompressed_name
       617736021001          3613347840 -16995.9% big_archive.tar

As you can see, the ratio field is producing an incorrect result.  I'm not
sure if this is because the archive is too big or what.  It was generated
via the following command in quotes:
"tar -cv /path/to/folder/big_folder | gzip --rsyncable >
/path/to/big_archive.tgz"

*gzip version:* 1.9
*Hardware:* Dell R720 Poweredge Rack Server
*OS:* Debian 10 buster
*Kernel:* Linux 4.19.0-18-amd64
*Architecture:* x86-64

Best regards,
-- 

G. Austin Corbett, P.E.
Staff Engineer
OurEvolution Energy & Engineering

1821 Buttermilk Lane
Arcata, CA 95521
Mobile: 707.845.4778