8013334: Spliterator behavior for LinkedList contradicts Spliterator.trySplit Summary: this changeset also contains some minor, non spec, related fixes to tidy up other areas of the JavaDoc. Reviewed-by: plevart, darcy Contributed-by: John Rose <john.r.rose@oracle.com>, Mike Duigou <mike.duigou@oracle.com>, Paul Sandoz <paul.sandoz@oracle.com>