Could I have done this better, in ruby?

reverse.rb

#!/usr/bin/env ruby

require 'trollop'
opts = Trollop::options do 
    banner <<-EOS
Reverses a string.

Usage:
        ruby reverse.rb [options]
Options:
EOS
    opt :input, "String to reverse", :type => :string, :short => "-i"
end 

Trollop::die :input, "flag is required" if opts[:input] == nil

opts[:input].split("").reverse.each do |i|
    print i
end