struct's docstring implies alignment is always performed

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2018-02-15.16:52:04.289>
labels = ['type-bug', '3.8', 'docs']
title = "struct's docstring implies alignment is always performed"
updated_at = <Date 2018-02-15.16:52:04.289>
user = 'https://github.com/eli-b'

bugs.python.org fields:

activity = <Date 2018-02-15.16:52:04.289>
actor = 'Eli_B'
assignee = 'docs@python'
closed = False
closed_date = None
closer = None
components = ['Documentation']
creation = <Date 2018-02-15.16:52:04.289>
creator = 'Eli_B'
dependencies = []
files = []
hgrepos = []
issue_num = 32853
keywords = []
message_count = 1.0
messages = ['312214']
nosy_count = 2.0
nosy_names = ['docs@python', 'Eli_B']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue32853'
versions = ['Python 3.8']