create_shell_runner

# File lib/rake/file_utils.rb, line 61
  def create_shell_runner(cmd) # :nodoc:
    show_command = cmd.join(" ")
    show_command = show_command[0, 42] + "..." unless $trace
    lambda do |ok, status|
      ok or
        fail "Command failed with status (#{status.exitstatus}): " +
        "[#{show_command}]"
    end
  end