RFR of JDk9 8164623: Doc typo in java/util/concurrent/ConcurrentLinkedDeque.java and ConcurrentLinkedQueue.java

[Hamlin Li]

Below doc is not correct, because for ConcurrentLinkedDeque and 
ConcurrentLinkedQueue, addAll is a atomic operation.
"Additionally, the bulk operations addAll, removeAll, retainAll, 
containsAll, equals, and toArray are not guaranteed to be performed 
atomically. For example, an iterator operating concurrently with an 
addAll operation might view only some of the added elements."
It should be modified as some thing like below:
"Additionally, the bulk operations removeAll, retainAll, containsAll, 
equals, and toArray are not guaranteed to be performed atomically."

bug: https://bugs.openjdk.java.net/browse/JDK-8164623
webrev: http://cr.openjdk.java.net/~mli/8164623/webrev.00/

Thank you
-Hamlin