RFR(s): 8152617 add missing wildcards to Optional or() and flatMap()

[Andrej Golovnin]

Hi Stuart,

> Webrev:
> 
> 	http://cr.openjdk.java.net/~smarks/reviews/8152617/webrev.0/


267     public<U> Optional<U> flatMap(Function<? super T, ? extends Optional<? extends U>> mapper)

I think there should be a space between “public” and “<U>”.

Best regards,
Andrej Golovnin