new

# File railties/lib/rails/backtrace_cleaner.rb, line 8
    def initialize
      super
      add_filter   { |line| line.sub("#{Rails.root}/", '') }
      add_filter   { |line| line.sub(RENDER_TEMPLATE_PATTERN, '') }
      add_filter   { |line| line.sub('./', '/') } # for tests

      add_gem_filters
      add_silencer { |line| line !~ APP_DIRS_PATTERN }
    end