[docs] [issue28525] Incorrect documented parameter for gc.collect

[Roundup Robot]

New submission from Roundup Robot:

New changeset 05b5e1aaedc5 by Benjamin Peterson in branch '3.5':
fix name of keyword parameter to gc.collect() (closes #28525)
https://hg.python.org/cpython/rev/05b5e1aaedc5

New changeset f9a04afaeece by Benjamin Peterson in branch '3.6':
merge 3.5 (#28525)
https://hg.python.org/cpython/rev/f9a04afaeece

New changeset ffaf02ec9d8b by Benjamin Peterson in branch 'default':
merge 3.6 (#28525)
https://hg.python.org/cpython/rev/ffaf02ec9d8b

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nosy: +python-dev
resolution:  -> fixed
stage:  -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28525>
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