# File lib/hammer_cli/output/adapter/abstract.rb, line 18
    def print_error(msg, details=nil, msg_params={})
      details = details.split("\n") if details.kind_of? String

      if details
        indent = "  "
        msg += ":\n"
        msg += indent + details.join("\n"+indent)
      end

      $stderr.puts msg.format(msg_params)
    end