splat演算子の非互換
RUBY_VERSION # => "1.8.7" a = *1 a # => 1 a = *[1] a # => 1
RUBY_VERSION # => "1.9.0" a = *1 a # => [1] a = *[1] a # => [1]
ぬぅー、このへんはあやふやだorz
RUBY_VERSION # => "1.8.7" a = *1 a # => 1 a = *[1] a # => 1
RUBY_VERSION # => "1.9.0" a = *1 a # => [1] a = *[1] a # => [1]
ぬぅー、このへんはあやふやだorz