[docs] [issue16530] documentation of os.wait3

[Roundup Robot]

Roundup Robot added the comment:

New changeset a2038edb51cd by Ezio Melotti in branch '2.7':
#16530: the "options" arg of os.wait3 is required.
http://hg.python.org/cpython/rev/a2038edb51cd

New changeset 1cf1194a443e by Ezio Melotti in branch '3.2':
#16530: the "options" arg of os.wait3 is required.
http://hg.python.org/cpython/rev/1cf1194a443e

New changeset 7359ade2ab0b by Ezio Melotti in branch '3.3':
#16530: merge with 3.2.
http://hg.python.org/cpython/rev/7359ade2ab0b

New changeset a728056347ec by Ezio Melotti in branch 'default':
#16530: merge with 3.3.
http://hg.python.org/cpython/rev/a728056347ec

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nosy: +python-dev

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