- puts <<-END
-graph_args --base 1024 -l 0 --vertical-label bytes --upper-limit 4056231936
-graph_category passenger
-graph_title Passenger memory
+ puts <<~CONFIG
+ graph_args --base 1024 -l 0 --vertical-label bytes --upper-limit 4056231936
+ graph_category passenger
+ graph_title Passenger memory