base: rework license lint  * tokenize licenses  * more gracefully find missing hyphens  * more uniform messages
base: rework license lint
 * tokenize licenses
 * more gracefully find missing hyphens
 * more uniform messages

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@85933 d073be05-634f-4543-b044-5fe20cf6d1d6

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