Bug 8056

When attempting to use the date command with an ISO-8601 [1] formatted combined time and date, BusyBox does not accept the standard 'T' delimiter.  Date from coreutils does.  I built this version locally because I was cross-compiling for an embedded  PowerPC Linux target.  The issue is present on both targets.

> kaltendorf@kaltendorf-VirtualBox:~/bb/busybox-1.23.2$ ./busybox
> BusyBox v1.23.2 (2015-03-26 14:01:55 EDT) multi-call binary.
> BusyBox is copyrighted by many authors between 1998-2012.
> Licensed under GPLv2. See source distribution for detailed
> copyright notices.
> 
> <snip>
> 
> kaltendorf@kaltendorf-VirtualBox:~/bb/busybox-1.23.2$ sudo ./busybox date --utc --set="2015-04-19T12:59:23+00:00"
date: invalid date '2015-04-19T12:59:23+00:00'
> kaltendorf@kaltendorf-VirtualBox:~/bb/busybox-1.23.2$ sudo ./busybox date --utc --set="2015-04-19 12:59:23+00:00"
Sun Apr 19 12:59:00 UTC 2015
> kaltendorf@kaltendorf-VirtualBox:~/bb/busybox-1.23.2$ sudo date --utc --set="2015-04-19 12:59:23+00:00"
Sun Apr 19 12:59:23 UTC 2015
> kaltendorf@kaltendorf-VirtualBox:~/bb/busybox-1.23.2$ sudo date --utc --set="2015-04-19T12:59:23+00:00"
Sun Apr 19 12:59:23 UTC 2015

[1]: http://en.wikipedia.org/wiki/ISO_8601#Combined_date_and_time_representations