Change where the receipts are stored from /Library/Receipts/darwinports to the more sensible /opt/local/var/db/receipts.
Change where the receipts are stored from /Library/Receipts/darwinports to
the more sensible /opt/local/var/db/receipts.

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@630 d073be05-634f-4543-b044-5fe20cf6d1d6

macports/macports-base,neverpanic/macports-base,macports/macports-base,danchr/macports-base,neverpanic/macports-base,danchr/macports-base