Correctly state that type parameters are Sized by default.
@@ -12,7 +12,7 @@ types">DSTs</abbr>. Such types can only be used in certain cases:
* Pointers to trait objects also store a pointer to a vtable.
* <abbr title="dynamically sized types">DSTs</abbr> can be provided as
type arguments when a bound of `?Sized`. By default any type parameter
- has a `?Sized` bound.
+ has a `Sized` bound.
* Traits may be implemented for <abbr title="dynamically sized
types">DSTs</abbr>. Unlike type parameters`Self: ?Sized` by default in trait
definitions.
