Rename awstats.conf so update.sh doesn't use it

Rename awstats.conf so update.sh doesn't use it

awstats' update.sh tries to run awstats.conf (if it exists) and awstats.*.conf.
I want to use awstats.conf as my base config file which the packager will
upgrade for me, and have my domains in distinct config files, rather than
editing awstats.conf to contain my "default" domain.

So, I use
dpkg-divert  --rename --local --add /etc/awstats/awstats.conf
to hopefully make the distributors version live in awstats.conf.distrib,
where update.sh won't use it, and change my per-domain files to reference
it there.