New and improved? patch

[Sean Bruno]

Dieter wrote:
>> 7.0 AMD64 # ./fwcontrol -f -5
>> fwcontrol: main:set_root_node out of range: No such file or directory
>>
>> "No such file or directory" seems wrong
>>     
>
> err(EX_USAGE, "%s:set_root_node out of range", __func__);
>
> Err() is correct for places where errno would be set, such as
> checking the return code from read(2).  But for the range checks,
> errno does not apply, so err() gives misleading results.
>
> The err(3) man page isn't clear, but it looks like errx(3) is
> the function you want for the range checks.
>
> Changing err() to errx() gives:
>
> 7.0 AMD64 # ./fwcontrol -f 70
> fwcontrol: main:set_root_node out of range
>   
Yup.  I completely agree here.

-- 
Sean Bruno
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