"pw useradd -D -e" writes bogus expire_days value into pw.conf

[Yuri Pankov]

On Sun, 5 Nov 2017 14:45:40 +0300, Yuri Pankov wrote:
> On Sun, 5 Nov 2017 10:32:22 +0700, Victor Sudakov wrote:
>> Dear Colleagues,
>>
>> Could anyone please reproduce this bug, especially on an 11.x and 12.x
>> branches? Or is it just me?
>>
>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223431
> 
> Yes, it's the same on -CURRENT, but as the man page says, argument to -e
> must be numeric in presence of -D, so most likely it just needs an
> additional check.

Added a simple patch to the PR -- check if argument is numeric, 
otherwise it's parsed as date, and the *timestamp* of account expiry is 
written as days into the pw.conf.