bin/print in preval-0.3.0 vs bin/print in preval-0.4.0

@@ -1,11 +1,9 @@
 #!/usr/bin/env ruby
 
 require 'bundler/setup'
 require 'preval'
 
-Preval::Visitors::Arithmetic.enable!
-Preval::Visitors::Loops.enable!
-Preval::Visitors::Micro.enable!
+Preval.enable_all!
 
 source = ARGV.first
 puts Preval.process(File.exist?(source) ? File.read(source) : source)