Fix directory heuristic for long file names.

Tar specifies that a filename ending with '/' is a directory. We were
incorrectly looking at the short name. This meant that when we have long
filenames with a '/' at the 100th character, we would decide it was a
directory.

This change uses the long name when deciding the size for extraction,
and trusts the header size when just skipping forward in the stream.

0 files changed, 0 insertions, 0 deletions