gh-91984: Appended '\n' to test strings in test_argparse.py(#91984)

[AbhigyanBose]

#gh-91984: Appended '\n' to test strings in test_argparse.py(#91984)

Implementing the fix proposed in the issue description in #91984

Adding '\n' to the end of:

cpython/Lib/test/test_argparse.py

Line 2268 in b733708

foo

and

cpython/Lib/test/test_argparse.py

Line 2285 in b733708

{}

Closes #91984.

[serhiy-storchaka]

Thanks! I was going to fix this a long time ago, but could not find a free time for this.

[AbhigyanBose]

@serhiy-storchaka Could you approve the test workflows ?

[miss-islington]

Thanks @AbhigyanBose for the PR, and @serhiy-storchaka for merging it 🌮🎉.. I'm working now to backport this PR to: 3.9.
🐍🍒⛏🤖

[miss-islington]

Thanks @AbhigyanBose for the PR, and @serhiy-storchaka for merging it 🌮🎉.. I'm working now to backport this PR to: 3.10.
🐍🍒⛏🤖

[miss-islington]

Sorry, @AbhigyanBose and @serhiy-storchaka, I could not cleanly backport this to 3.9 due to a conflict.
Please backport using cherry_picker on command line.
cherry_picker 88dd22795925a8f47d38737ca8067eeb3f0a13aa 3.9

[miss-islington]

Sorry @AbhigyanBose and @serhiy-storchaka, I had trouble checking out the 3.10 backport branch.
Please backport using cherry_picker on command line.
cherry_picker 88dd22795925a8f47d38737ca8067eeb3f0a13aa 3.10