Fri, 09 Mar 2018 14:30:13 +0100 wenzelm ignore empty lines;
Fri, 09 Mar 2018 14:26:08 +0100 wenzelm tuned;
Fri, 09 Mar 2018 13:36:52 +0100 wenzelm more robust read_line after shutdown;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 tip