Ruby 1.9.3 syntax for block as argument -


Then in Ruby 1.9.2 - p290 I can do this 

  content_for: something , Ending   
 which is quite good but it is a syntax error in Ruby 1.9.3-P12 and instead I need to do this  
  End content_for (:)   
 Where do I find the document about this syntax restriction? Is there any other way that can be written in 1.9.3-P12?  
  
 
 
 Simply delete a comma:  
 for  content_: something ended Happens

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