Man page doesn't say where to send bugs, unlike all other GNU man pages.
Man page says
-t --test
Test. Check the compressed file integrity.
It should also say "and quit"
like
-V --version
Version. Display the version number and compilation options then
quit.
says.Also $ gunzip -t file.gz gzip: file.gz: invalid compressed data--crc error gzip: file.gz: invalid compressed data--length error prints extra newlines. $ gunzip -V gzip 1.9
