# File lib/safe_yaml/libyaml_checker.rb, line 29
    def self.libyaml_patched?
      return false if (`which dpkg` rescue '').empty?
      libyaml_version = `dpkg -s libyaml-0-2`.match(/^Version: (.*)$/)
      return false if libyaml_version.nil?
      KNOWN_PATCHED_LIBYAML_VERSIONS.include?(libyaml_version[1])
    end