Update pwgen to github source

[danmcd]

There are bugs in the sourceforge version of pwgen 2.08 that are fixed in https://github.com/tytso/pwgen . We should use that one. Especially concerning:

tytso/pwgen@54d6c1c

Test case on current pkgsrc pwgen:

count=0 ; while ! pwgen -c -B -n 16 1 | egrep -v '[A-Z]' ; do count=$((count + 1)) ; done ; echo $count

That'll get you a loop stop in <= 20 tries. On the one that's currently hardcoded in smartos-live, it never stops (i.e. it works).

[danmcd]

I would also appreciate if this could be backported to 24.4.1 if possible.

[danmcd]

See https://smartos.org/bugview/OS-8680 for details.

[jperkin]

I've fixed this slightly differently and backported the fixes from GitHub rather than switching to it as the upstream, as they haven't yet tagged a new release.

NetBSD@94ed6ca

I'll get this backported to 24.4 today.

[danmcd]

Tested via OS-8680. You may close this at your convenience, @jperkin .