> also note that "gzip -t" will show modulo 2^32, and *not* real size,

Should that be "gzip -l" ?  For me gzip -t doesn't show anything.

Presumably it's also showing what it 'should' show according to the RFC,
and so the BUGS would be that the header text from gzip -l says simply
"uncompressed" rather than something like "uncompressed(mod 2^32)" and
that the man page at -l simply says "uncompressed size."  (Actually a
language lawyer in a really snarky mood could probably argue that the
man page says the option "displays information about the file's ...
uncompressed size" and that the size%2^32 is "information about" the
real size ... but would probably have tongue firmly in cheek.)

-Chap