print a link to a helpful wiki page when there is a checksum mismatch and the downloaded file appears to incorrectly contains HTML (https://trac.macports.org/ticket/25128)
print a link to a helpful wiki page when there is a checksum mismatch and the downloaded file appears to incorrectly contains HTML (https://trac.macports.org/ticket/25128)

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@70143 d073be05-634f-4543-b044-5fe20cf6d1d6

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