Fixed uninstall to propery skip files that are missing instead of crashing with an error.
Fixed uninstall to propery skip files that are missing instead of crashing
with an error.

Bug:            https://trac.macports.org/ticket/2665
Submitted by:   Chris Scharver

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@10937 d073be05-634f-4543-b044-5fe20cf6d1d6

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