Adjust numerous manual pages, scripts and Makefiles for the utmp removal.

Also remove /var/run/utmp and /var/log/lastlog via 'make upgrade'. Keep
any /var/log/wtmp and /var/log/wtmp.* files in case

Adjust numerous manual pages, scripts and Makefiles for the utmp removal.

Also remove /var/run/utmp and /var/log/lastlog via 'make upgrade'. Keep
any /var/log/wtmp and /var/log/wtmp.* files in case the user wants to
convert them with wtmpcvt(1).

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world - Add missing sample file for aws imaging script

* Add missing sample file for aws imaging script.

* Add missing mtree directory for above.

* Fixes installworld