xref X::NYI (#3551)

Thanks!

Author: stoned

doc/Type/IO/CatHandle.pod6

@@ -758,8 +758,8 @@ to be closed.
 
 =head1 NYI Methods
 
-The L<IO::CatHandle|/type/IO::CatHandle> type overrides these methods to throw a C<X::NYI>
-exception.
+The L<IO::CatHandle|/type/IO::CatHandle> type overrides these methods
+to throw a L«C<X::NYI>|/type/X::NYI» exception.
 
 =head2 method flush