ruby2js.rb in ruby2js-2.1.10

- old
+ new

@@ -1,6 +1,7 @@
 begin
   # silence warnings, see 
+  # https://github.com/whitequark/parser/issues/346#issuecomment-317617695
   # https://github.com/bbatsov/rubocop/issues/1819#issuecomment-95280926
   old_verbose, $VERBOSE = $VERBOSE, nil
   require 'parser/current'
 ensure
   $VERBOSE = old_verbose