Postprocessing scripts throw an exception into the debug log

[lutsik]

The postprocessing scripts are throwing the following exception in the debug logs:

Traceback (most recent call last):
File "/local/workflux_instance/workflUX/workflux/exec/workflux_bg_exec.py", line 226, in
send_mail(subj, text)
File "/local/workflux_instance/workflUX/workflux/exec/workflux_bg_exec.py", line 72, in send_mail
elif platform_system() != "Linux":
NameError: name 'platform_system' is not defined

This does not seem to affect the success status of the job, but still looks suspicious in the log.