SYN-282: Don't log tracebacks for client errors
SYN-282: Don't log tracebacks for client errors

rzr/synapse,howethomas/synapse,illicitonion/synapse,rzr/synapse,howethomas/synapse,TribeMedia/synapse,TribeMedia/synapse,iot-factory/synapse,matrix-org/synapse,illicitonion/synapse,rzr/synapse,iot-factory/synapse,matrix-org/synapse,matrix-org/synapse,illicitonion/synapse,iot-factory/synapse,iot-factory/synapse,rzr/synapse,howethomas/synapse,illicitonion/synapse,matrix-org/synapse,iot-factory/synapse,TribeMedia/synapse,TribeMedia/synapse,matrix-org/synapse,matrix-org/synapse,howethomas/synapse,rzr/synapse,howethomas/synapse,illicitonion/synapse,TribeMedia/synapse