scala-zeromq-binding: Fix typo in zmq_msg_t
scala-zeromq-binding: Fix typo in zmq_msg_t

Signed-off-by: Jussi Virtanen <2a7e40f91a3be32dfb7e35af6e476a252ebdb4f3@gmail.com>

valotrading/zeromq-scala-binding,valotrading/zeromq-scala-binding