Sybex 816, chapter 7, typo

[Matus Iglarcik]

Chapter 7, page 356, after output example there is a typo:

With a single-thread executor, results are guaranteed to be executed sequentially.

it should be:

With a single-thread executor, tasks are guaranteed to be executed sequentially.

[Jeanne Boyarsky]

Agreed. Added to the errata