Option to show formatted time

[twodrops]

The default of showing time taken in seconds is a good way to do easy comparisons.
A nice to have: An option to show the time taken in a formatted way - %H hr %M min %S sec

[danwos]

Agree, long-running tests may need a different time format.

I think about implementing some generic configuration file for options like this, so that not everything must be given by CLI parameters.