ArgumentError: flag after precision

[yegor256]

ArgumentError: flag after precision
  from SVG/Graph/Graph.rb:671:in `%'
  from SVG/Graph/Graph.rb:671:in `make_datapoint_text'
  from SVG/Graph/Line.rb:260:in `block (2 levels) in draw_data'
  from SVG/Graph/Line.rb:247:in `each_index'
  from SVG/Graph/Line.rb:247:in `block in draw_data'
  from SVG/Graph/Line.rb:201:in `each'
  from SVG/Graph/Line.rb:201:in `draw_data'
  from SVG/Graph/Graph.rb:213:in `burn'
  from objects/graph.rb:79:in `svg'
  from front/front_rate.rb:157:in `block (2 levels) in <top (required)>'

[yegor256]

reported: clbustos/svg-graph#13

[0crat]

Job #261 is now in scope, role is DEV

[0crat]

Bug was reported, see §29: +15 point(s) just awarded to @yegor256/z