qpopper:
* add user-destdir support
* add ${QPOPPER_USER}:${QPOPPER_GROUP} to PKG_USERS, fixes PR#28807.
* honor VARBASE.
common:
* update ipv6 patch to appropriate one for base version.
* some pkglint cleanup.
Bump PKGREVISION.
- Catch child process exit.
- Add "-o" option which provides compatibility with older poppassd,
returning authentication error after "PASS" command not "NEWPASS"
for some broken clients.
* Pass the LDFLAGS through to the build process so that the final binaries
are built with the appropriate -Wl,-R flags. This should fix pkg/18054.
* Use ROOT_{USER,GROUP} instead of hardcoding "root" and "wheel" when
installing poppassd.
* Fixed DOS attack seen on some systems.
* Fixed "noop has null function" log entry.
* Allow '-p' to be used when APOP not defined (noted by Daniel Senie).
* Enforce ClearTextPassword even without APOP (noted by Daniel Senie).
* Restrict clear-text-password=never to APOP.
* Restrict clear-text-password=tls to QPOP_SSL.
* Fixed qpopper hanging on I/O error on some platforms.
