Ruby

Bug #17560

Updated by nobu (Nobuyoshi Nakada) about 4 years ago

The RDoc says that it returns `self`: 

 ``` 
 ruby2_keywords(method_name, ...)      -> self 
 ``` 

 This seems consistent with other methods which accept method names, e.g., `public`, `private`, etc. 

 But it actually returns `nil`, and `TestKeywordArguments#test_ruby2_keywords` also has 2 `assert_nil`s. 

 Which is intentional? 

 [patch to fix code as the doc](https://github.com/ruby/ruby/pull/4097) 

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