Uninformative error messages from MessageFilter #118
Description
When trying to use AMCL, I got the following errors. They are problematic because (1) it's hard to tell they are coming from a MessageFilter, (2) it gives no idea of severity (INFO seems innocuous but signalFailure sounds scary). (3) the "reason" code is not interpretable.
[amcl-2] [INFO] [amcl_rclcpp_node]: [signalFailure] Drop message: frame 'lidar_link' at time 1560375247.070 for reason(0)
[amcl-2] [INFO] [amcl_rclcpp_node]: [signalFailure] Drop message: frame 'lidar_link' at time 1560375247.142 for reason(0)
[amcl-2] [INFO] [amcl_rclcpp_node]: [signalFailure] Drop message: frame 'lidar_link' at time 1560375247.214 for reason(0)