ikiwiki-update-wikilist is designed to be safely run as root by arbitrary
users, either by being made suid and using the (now deprecated suidperl), or
by being configured in /etc/sudoers to allow arbitrary users to run.
All it does is allows users to add or remove their names
from the /usr/local/etc/ikiwiki/wikilist file.
By default, the users name will be added.
The -r switch causes the users name to be removed.
If your name is in /usr/local/etc/ikiwiki/wikilist, the ikiwiki-mass-rebuild(8)
command will look for a ~/.ikiwiki/wikilist file, and rebuild the wikis listed
in that file.