segfault when read_file module is missing the path option

[stapelberg]

Originally posted by @sworthiness in #128 (comment)

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I am experiencing this issue too.
I am running Arch Linux, i3bar v4.20.1, i3status v2.14

I have done the following suggestion which did not resolve the issue

output_format = "i3bar" in the general block of the i3status config

In my case, it seems to be related to using the path_exists module, which when it fails it's check, results in the error message in i3bar but when run from xterm, it prints the format_down message with no problem.
However i have also seen segfaults from xterm too depending on what combination of path_exists and disk is used.
See segfault.txt for journal entry.

EDIT:
I found my problem with path_exists - i needed to add the path attribute to the module. Still it would be good if it failed in a cleaner way :)