Fixed TAbGzipArchive.FixName for gzipped tar archives so it doesn't lose path information.
Fixed TAbGzipArchive.FixName for gzipped tar archives so it doesn't lose path information.

rburgstaler/tpabbrevia,rburgstaler/tpabbrevia,rburgstaler/tpabbrevia,rburgstaler/tpabbrevia,rburgstaler/tpabbrevia,rburgstaler/tpabbrevia