- Limit suffix to be no more than 30 bytes long. This matches GNU
behavior.
- Correct usage of memcpy().
Note that this commit only corrects the stack underflow issue, we
still need some other fixes to cover other edges. [1]
Reported by: Ron Jude <ronj wytheville org>
Discussed with: Matthew Green (original NetBSD gzip author),
Eygene Ryabinkin <rea-fbsd codelabs ru> [1]
Approved by: re (kib)