Fix typo from https://trac.macports.org/changeset/24504: 'MacPports' -> 'MacPorts'
Fix typo from https://trac.macports.org/changeset/24504: 'MacPports' -> 'MacPorts'

git-svn-id: dc463f922b716f8a7bf91846309830e794c23801@24507 d073be05-634f-4543-b044-5fe20cf6d1d6

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