Separate STDERR and STDOUT logs for influxdb and kapacitor

Hello! I understand that influxdb and kapacitor by default throw out logs to stderr if nothing is mentioned or if a filename is mentioned in the logging section of its config file , then the logs go to the file . I’d like to know if its possible for me to get stderr and stdout logs to separate files for influxd and kapacitord. Is it possible to have all stdout messages go to stdout.log and any errors go to stderr.log (for example)?