R!! list.append to list.extend

[nickdelgrosso]

Hi,

Very tiny refactor, following the pattern below:

from:

a = [0, 1]
a.append(2)
a.append(3)
a.append(4)

to:

a = [0, 1]
a.extend([
   2,
   3,
   4,
])

Description

Not a huge deal either way, just reduces some visual noise.

[sourcery-ai]

Sourcery Code Quality Report

✅  Merging this PR will increase code quality in the affected files by 1.44%.

Quality metrics	Before	After	Change
Complexity	1.00 ⭐	1.00 ⭐	0.00
Method Length	42.50 ⭐	38.00 ⭐	-4.50 👍
Working memory	4.00 ⭐	4.00 ⭐	0.00
Quality	88.96% ⭐	90.40% ⭐	1.44% 👍

Other metrics	Before	After	Change
Lines	15	17	2

Changed files	Quality Before	Quality After	Quality Change
approvaltests/reporters/diff_reporter.py	88.96% ⭐	90.40% ⭐	1.44% 👍

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation

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