create_shell_runner

# File lib/rake/file_utils.rb, line 49
  def create_shell_runner(cmd) # :nodoc:
    show_command = cmd.join(" ")
    show_command = show_command[0,42] + "..." unless $trace
    lambda { |ok, status|
      ok or fail "Command failed with status (#{status.exitstatus}): [#{show_command}]"
    }
  end