in mportexec, in addition to checking if the target potentially requires dependencies, check if the port actually has any dependencies relevant to the target
in mportexec, in addition to checking if the target potentially requires dependencies, check if the port actually has any dependencies relevant to the target

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@72997 d073be05-634f-4543-b044-5fe20cf6d1d6

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