Remove the unfinished sentence
"Since a barrier is, by definition, never immediately [...]"
and jump directly to
"The task may wait [forever or for a timeout]"
instead.
I cannot figure out what the unfinished sentence is supposed to be -
"released"? "passed"?
Remove various incorrect references to "lock" and "obtain" and to an
option set which is not part of the barrier interface.
It looks like the barrier documentation was started based on a copy of
the semaphore documentation and these things are surviving remnants.
Also remove an unfinished sentence in the barrier wait description,
since the intended information is already provided in the under the NOTE
label.
This change combined with the element list change in latex generates
a much better looking PDF.
Add a page break before each directive to like th previous versions of the
manuals.
