Comment # 37 on bug 1231323 from Michael Andres

pstree:
yast---y2start-+-sh---yast---Zypp-main---3*[{Zypp-main}]
               `-2*[{y2start}]

pstree -t:
yast---y2start-+-sh---yast---Zypp-main-+-{Zypp-Log}
               |                       |-{ruby-timer-thr}
               |                       `-{y2start}
               |-{ruby-timer-thr}
               `-{y2start}

We start the Zypp-Log thread.