trace mode: don't follow symlinks when doing unlink, avoids error when unlink(x) where x is a symlink in the sandbox pointing outside the sandbox, fixes trace mode build of Python.
trace mode: don't follow symlinks when doing unlink, avoids error when unlink(x) where x is a symlink in the sandbox pointing outside the sandbox, fixes trace mode build of Python.

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@127024 d073be05-634f-4543-b044-5fe20cf6d1d6

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