Update rmw_publish error returns (#430)
Update rmw_publish error returns (#430)

Signed-off-by: lobotuerk <a85064d9fdd7cc5d015f9bc2798238a832f5ada7@ekumenlabs.com>
eProsima/ROS-RMW-Fast-RTPS-cpp,ros2/rmw_fastrtps,ros2/rmw_fastrtps