bug in git-archive?

Hello everyone

git-archive only archives the current working dir (and sub dirs) even when no paths are specified. For example, if I do

git archive --format=tar --prefix=git-1.5.0.2/ HEAD > ~/test/test.tar

from with in the Documentation dir, then I only get part of the tree.

Is this the intended behavior?

The reason I ask is that from my (mis)reading of the man page I expect to get all of the tree unless paths are specified.

thanks

NJW