manual_let_else: let/else is not divergent by default

[samueltardieu]

The divergent else block of a let/else statement does not make the let/else statement itself divergent.

Fixes #10296

changelog: [manual_let_else]: do not consider let/else to be divergent by default

[rustbot]

r? @Alexendoo

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[Alexendoo]

Thanks! This is a good way of doing it 👍

@bors r+

[bors]

📌 Commit 7f15a11 has been approved by Alexendoo

It is now in the queue for this repository.

[bors]

⌛ Testing commit 7f15a11 with merge 4c28fdd...

[bors]

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: Alexendoo
Pushing 4c28fdd to master...