def process_lit(exp)
      exp.shift
      value = exp.shift

      if value.is_a?(Numeric) && !@ignore.include?(value)
        @file.magic_numbers << MagicNumber.new(:value => value, :line => exp.line)
      end

      s()
    end
def process_lit(exp)
      exp.shift
      value = exp.shift

      if value.is_a?(Numeric) && !@ignore.include?(value)
        @file.magic_numbers << MagicNumber.new(:value => value, :line => exp.line)
      end

      s()
    end
Process literal node. If a literal is a number and add it to the
 collection of magic numbers.

 @param exp [Sexp]

 @return [Sexp]