The command is not implemented correctly yet. The documentation allows
to not pass any value to set, in which case the time is re-read from
RTC. However, reading CMOS on Windows is not trivial to implement. So
instead of pretending we've set the correct time, fail explicitly.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>