Minor formatting improvement in generated shell scripts.
Add a newline after the last export emitted by emit_func. Also, remove
chance of putting an extra newline in the middle of the exports, since
we never want to do that.
(Bitbake rev: 5117d9b5d32d5d81adf70fa3e3feac9cef654240)
Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>