#863 duration-parameter without seconds and rounded incorrectly

[Tobias Plettenbacher]

The duration parameter is displayed and exported without seconds (i.e. 1h 42min) and rounded incorrectly (i.e. 1h 42min 59sec is truncated to 1h 42min). Can you change this to include seconds? Seconds are only displayed when duration is below 1 minute. If the duration is shorter than 1 minute, even milliseconds are shown (i.e. 48s 953ms)!