allow executing shell code in the config (e.g. safely store passwords)
allow executing shell code in the config (e.g. safely store passwords)

similar to `env()`, `exec()` allows you to capture the output of a shell
script. This is useful for example when you need to store a password in
a relatively safe manner.

Example:
    imap 0 {
        password = exec(pass show email/foobar|head -n1)
        # ...
    }

ultrabug/py3status,valdur55/py3status,tobes/py3status,valdur55/py3status,guiniol/py3status,Andrwe/py3status,ultrabug/py3status,tobes/py3status,valdur55/py3status,ultrabug/py3status,Andrwe/py3status,guiniol/py3status