bug#67227: Suggestion of enhancement | Option dedicated to inform archive properties

[Ricky Tigg]

archive source: https://github.com/torvalds/linux/tags

$ file -b linux-6.6.tar.gz
gzip compressed data, from Unix, original size modulo 2^32 1419089920 gzip
compressed data, unknown method, has CRC, extra field, from FAT filesystem
(MS-DOS, OS/2, NT), original size modulo 2^32 1419089920

Hello. The unknown method would be worth revealing by GNU Zip. the addition
of a dedicated command option tat reveals the archive properties, among
them those relevant ones that are  reported by the file-command, would be
adequate for this purpose.