Pack root path fix

[26medias]

The archive doesn't include the current directory, only its content.

When I archive the directory '/test', I only want its content in the archive, not a new directory '/test'.

[othiym23]

What is the intent of this patch? And could you include a test to go with it? I'm having a little trouble figuring out what you want to happen from the description and patch.

[26medias]

If you want to archive the content of a directory, then you only want to content in the archive, not the directory itself.

If I archive that directory with the current version:
fstream.Reader({ path: '/test', type: "Directory" }).pipe(tar.Pack({ noProprietary: true })).pipe(fs.createWriteStream('test.tar.gz'));

I get a tar.gz file that contains /test itself hen it should only archive the content of that directory.

I don't know if it's on purpose, but none of the other libs work in that way, and there doesn't seem to be any way to archive the content of a directory without including the directory itself in the code.

[26medias]

I'm not going to write a test, there's a single line change. It's ok if you don't merge, I forked and using that modified version for my own use.

[isaacs]

I'm not opposed to the feature, but it must be done in a way that doesn't break existing semantics (presumably by keeping defaults as they are, and adding new API for the change), and must have a test.

[26medias]

I understand, you can cancel the request.