[docs] [issue11670] configparser read_file now iterates over f, docs still say it calls readline

[Roundup Robot]

Roundup Robot <devnull at devnull> added the comment:

New changeset 1bbda00bbe78 by Łukasz Langa in branch '3.2':
Style updates for the #11670 solution after post-commit review by Ezio Melotti:
http://hg.python.org/cpython/rev/1bbda00bbe78

New changeset 339cd1d9b21a by Łukasz Langa in branch 'default':
Merged styling updates for #11670 from 3.2.
http://hg.python.org/cpython/rev/339cd1d9b21a

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