port/port.tcl: Use a new array for the filters to avoid using other options as field, unset the arrays after processing is done, see https://trac.macports.org/ticket/15434
port/port.tcl:
Use a new array for the filters to avoid using other options as field, unset
the arrays after processing is done, see https://trac.macports.org/ticket/15434

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@44082 d073be05-634f-4543-b044-5fe20cf6d1d6

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