gen-tarball: handle symlinks correctly in the created the tar file

Now that we use a symlink for the top-level RELEASE-NOTES file, the
previous strategy of using a symlink to force the prefix in the tar
file and then using tar -h won't work.  So change how we generate the
tar file to take advantage of GNU tar's --transform option.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
1 file changed