Fixes since last tag:

* core-services/00-pseudofs
  - Configurable v1/v2/hybrid cgroup mounts
* core-services/03-filesystems
  - Respect auto-activation when activating LVM devices
  - Load any needed encryption keys when mounting ZFS datasets
* vlogger(8)
  - Behave like logger(1) when arvg[0] is "logger"
  - Pass empty tag to /etc/vlogger when tag is NULL
  - Default to daemon.notice if linked as runit log service
* halt(8)
  - Relax argv[0] comparisons when determining behavior
* services/agetty-generic
  - Use `chpst -P` to avoid backgrounding session leaders
* modules-load
  - Use global substitution to replace all commas in /proc/cmdline
* Documentation fixes