How to auto-wrap C# comments when performing "Tools -> Cleanup code" ?

When I perform "Tools -> Cleanup code", long comments are not automatically chopped into multiple lines.
My Right margin in Line Breaks and Wrapping is set at 120.
I've looked in "Code Editing | C# | Formatting Style | Line Breaks and Wrapping" but couldn't find anything related to comments.

For example I would like the following line

// A delegate is a type that represents references to methods with a particular parameter list and return type. When you instantiate a delegate, you can associate its instance with any method with a compatible signature and return type. You can invoke (or call) the method through the delegate instance.

to become like this:

// A delegate is a type that represents references to methods with a particular parameter list and return type.
// When you instantiate a delegate, you can associate its instance with any method with a compatible signature
// and return type. You can invoke (or call) the method through the delegate instance.