bug#73821: "gunzip -r -t" stops on first bad file

"gunzip -r -t" should recursively examine all the compressed files recursively and print all the corrupt files instead of stopping on the first bad file. gunzip 1.13

bug#73814: [PATCH] maint: Drop unused sample/makecrc.c.

Hi. The makecrc.c is not longer particulary relevant since gzip uses the gnulib crc module. The code is nice to preserve, and could be moved to gnulib eventually (possibly rewritten), but it will still be in gzip git forever, so doesn't have to be in the release archive. What do you think? /Sim