# File lib/whenever/command_line.rb, line 49
    def read_crontab
      return @current_crontab if @current_crontab
      
      command = ['crontab -l']
      command << "-u #{@options[:user]}" if @options[:user]
      
      command_results  = %x[#{command.join(' ')} 2> /dev/null]
      @current_crontab = $?.exitstatus.zero? ? command_results : ''
    end