Fix the %{time} printing to *not* default to the process's time

The default should be the actual time of day. Showing the process's time
is the optional case. In the future, we'll provide a way to showing the
monotonic reference time ("boot") and we should improve the detection of
actual application runtime.

Change-Id: I41936d77ab9fad2073dc0ce1c97cabe57ec39f16
Reviewed-by: Jan Arve Sæther <jan-arve.saether@theqtcompany.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>