trivial patch to reduce allocations in nio open* methods

[Michael Skells]

Hi

I have a trivial patch to reduce allocation of OpenOption sets where no
args are supplied



Spotted this while working on scala compiler, trying to reduce allocations



I cannot build JDK due to visual studio issues



Can someone progress the patch for me? Dont want to send a patch to this
mailgroup!



I have previously signed OCA and contributed (although it has been a while)



Mike