remove lines referencing 'Style/TrailingComma'
remove lines referencing 'Style/TrailingComma'

jmmastey/level_up_exercises,sumsionp/level_up_exercises,sumsionp/level_up_exercises,fengb/level_up_exercises,sumsionp/level_up_exercises,jmmastey/level_up_exercises,jmmastey/level_up_exercises,fengb/level_up_exercises,fengb/level_up_exercises