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I have a simple program:

def hello2 name2
  puts 'Hello ' + name2
  return 'success'
end
puts(hello2 'Ruby')

When I run this in 1.8.6, I get the output as:

tmp2.rb:5: warning: parenthesize argument(s) for future version
Hello Ruby
success

However, when I run the same in the development version 1.9, I get the
output as:

Hello Ruby
success


My question is:
a. Has the warning being removed in 1.9 ?
b. What happened to parenthesize argument(s) from 1.9?

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