# File lib/nanoc/extra/checking/checker_cli.rb, line 131
    def print_issues(issues)
      require 'colored'

      have_issues = false
      issues.group_by { |i| i.subject }.each_pair do |subject, issues|
        unless issues.empty?
          puts unless have_issues
          have_issues = true
          puts "#{subject}:"
          issues.each do |i|
            puts "  [ #{'ERROR'.red} ] #{i.checker_class.identifier} - #{i.description}"
          end
        end
      end
    end