CBLT-237:  fix typo in call to upload-to-maven.sh

Change-Id: I94ff439ea2e033124cd11d5fccc8cd390be5accd
Reviewed-on: http://review.couchbase.org/34973
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>