[Toybox] Fixes to mkdir, chown, env

[Jacek Bukarewicz]

On 09/05/2013 09:20 PM, Felix Janda wrote:
>>       - I believe that in mkdir.c line 60 the intent was to check if
>> flag "p" is not set.
> I believe Jacek was talking about line 57, my bug from commit 763 you
> noticed below. See his patch.
>
Hi,

Yes, I was talking about line 57 (line 60 after my changes, hence the 
confusion).

Thanks,
Jacek