bin/56540: unzip: some improvements from FreeBSD

[ak%freebsd.org@localhost]

>Number:         56540
>Category:       bin
>Synopsis:       unzip: some improvements from FreeBSD
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Dec 08 00:40:00 +0000 2021
>Originator:     Alex Kozlov
>Release:        
>Organization:
>Environment:
>Description:
Some improvements to unzip from FreeBSD:
- Fix segfault in case if archive_entry_pathname() returns NULL
- Enhance replace file prompt
- Improve comment explaining masks in check_binary()
- Update manpage: mention -P option, don't use contractions,
  mention that '-' filename is stdin, remove obsolete info about
  missing replace prompt
>How-To-Repeat:

>Fix:
Apply the patch https://freebsd.org/~ak/patch-netbsd-unzip2.txt