gh-91578: error message updated for abstract class

[ravi140222]

No description provided.

[bedevere-bot]

Every change to Python requires a NEWS entry.

Please, add it using the blurb_it Web app or the blurb command-line tool.

[ravi140222]

done

[vainaixr]

did I do the entry correctly, is there something else to be done?

[vainaixr]

it gives some assertion errors.
Will have to make the same change for them also.
Will do it by 13th May 2022.

[ravi140222]

hopefully it passes this time.
although it appears like a double negative, maybe there should also be a comma in the middle
maybe one of these would solve these problems,

1. In order to instantiate abstract class X, need to implement abstract methods foo, bar
2. In order to instantiate abstract class X, need an implementation for abstract methods foo, bar
3. To instantiate abstract class X, need an implementation for abstract methods foo, bar
4. Can't instantiate abstract class X, as abstract methods foo, bar are not implemented (but it is again double negative)
5. Instantiation of abstract class X needs an implementation for abstract methods foo, bar

[ericvsmith]

I think "Can't instantiate abstract class C with abstract methods foo, bar" reads okay.

[miss-islington]

@ravi140222: Status check is done, and it's a success ✅ .